Erechel
Explorer
I'm having a hard time accepting this as meaning anything other than : "actively protect players from the system"
As I've seen espoused, the 5e DCs are "world-set".
So I'm having problems figuring out how you'd sell the idea that though you have a very reasonable chance to succeed, you actually don't get to try...
I'm seeing it play out like :
Strong peasant (Str 14) vs 20th level Barb = no check
Strong low-level Fighter vs 20th level Barb = ? perhaps a check
Average (Str 10) 20th level fighter vs 20th level Barb = check*
Strong peasant (Str 14) vs 20th level Dex Fighter (10 Str) = ???
*I would assume this one gets to try, even if it has, by 5e's principals, a lower chance of success than the stronger peasant - which leaves me in a state of ???
The main point is actually the impossibility for me to know which situation would allow for a contest.
See above - you are completely correct. If this is meant as the way it is supposed to be, then I completely mis-understood the books.
Bolded 1 - no one is saying they are worthless. They (and I) are saying they have nothing particular to offer. They are worse than everyone else (note that "worse" is a relative term - it does not mean "bad", it simply means "not as good"). They are not abysmal, they simply have no tools to improve upon the baseline while every other class has a few.
Bolded 2 - I fail to see how AS gives out-of-turn options. But that could be a very appropriate house-rule.
Bolded 3 - in the way you are implying, yes, it can be done. (You're implying a great deal of use in broad situations where AS would give a significant advantage.) AS is very limited in use with short rests being so long - there is very little guarantee that it will be available. The examples you give don't work very well - having +33% speed for one round, would impact a chase only in the case were the target would be very, very close. Unless you're using it as a form of "you spent a relevant resource and so I shall reward you with appropriate success" - which is great! But not how the ability works in the "base game" - so we're definitely entering house-rule territory.
First of all, thank you for carefully reading the propositions I made. For Action Surge, the non-combat applications are some of the "uniqueness" of the class: the fighter is stronger, faster than everyone else. Chases are one example of timeframed situations where AS can be used, but rescue operations, catching bullets with your body (as a bodyguard, for example), or anything else that has to be resolved with a quick action. But also, you have one more ASI/ feat, expendable in things were other classes wont, because of the lesser feat economy. This actually is a lot, because you then can pick miscelaneous, non build-specific feats (like Mobile or Athlete) that increase your speed, or increase the amount of turns you can dash (increasing Constitution). And increasing 33% your speed is actually a lot, both to escape or to follow. You also has lesser obstacles to consider, because you probably have high Athletics or at least Remarkable Athlete (which gives only 1 point lesser than being proficient with the skill). The DMG in Urban Chase Complications gives at least three obstacles surpassable by sheer strenght, and 3 by Acrobatics (RA gives you the equivalent of a 4th level character proficiency on them, and Indomitable gives you a reroll on saving throws). AS gives you an edge, but not the ultimate solution to all problems. On the contrary, Cunning Action is actually a Combat ability only, so you can catch those squishy thiefs with your speed. Only the monk can surpass you, as he has actually improved speed, but with Athlete or Mobile you are on par if not faster than him (if you want to be faster, Mobile is actually a great feat, as it even increases combat effectivity). Not to mention that running also applies on escaping (EG) a volcano eruption, the Ultimate Doomy Doom Explosion (cool guys don't look at explosions, so you MUST NOT look at them too

As I said earlier, the RA ability gives an edge were no other class actually gives it. You are trying to escape from ropes? RA gives you an edge. Prevent a boulder from squish your party? Yeah. You are the equivalent of a 4th level proficient guy on things don't covered by the actual skills.
Again, you are not flawless, and you are not an especialist, you are a generalist with a few edges above others on certain situations. And yes
Point is : AS can be very useful out of combat, but that usefulness is very DM-dependant. A more "neutral" reading offers some use, that is certain, but not so impressive as that. But it is something!
That is the area of the DM. This is explicitly stated both in the DMG and in the PHB; there is also room for improvisation (stated on PHB), so it's expected to do that. And the system is actually great for that, it is robust enough to fit everyone's game. And your DM must be a jerk if he does not let you improvise an action with your action resource, because it is part of the rules. Even Written In Stone Attorneys can be outmatched by this. Rememeber that RA gives you low proficiency (+2 at 7th level) whenever you are improvising a physical action. No other class has this advantage.