EzekielRaiden
Follower of the Way
Extremely well-said. Honestly, it's funny how quickly one can fall into badwrongfun allegations without realizing it. Wishing to be mechanically effective is not an illegitimate wish, and feeling anxiety if one does not believe one is mechanically effective can easily dampen one's fun. It should be no sin to think that (say) a dwarf rogue sounds like fun, while also wishing to be mechanically effective as one.If by "optimized" you mean "is the very best possible version of their class"? then that's not the only use. It allows you to make viable characters without needing to pick the right race.
Because for some players, not having a 16 means they'll feel ineffective. You can argue math all you want, but they feel how they feel and telling them they shouldn't feel that way is both pointless and kind of rude, since telling people how to have fun is dismissing their own perception of fun.
And while that may or may not be a big plus to floating ASIs, it's a positive and the theoretical downside (people will just forget all the tropes and play short, bearded, surly, elves) simply does not manifest. That's why I favor it.