Not buying it. "Athletic" can apply to any Strength check, and "Educated" can apply to any Intelligence check. Too broad. I'd rather see a longer (perhaps unbounded) list of specific areas of expertise.
After some thought, I think that GX.Sigma makes a good point with regards to my proposed skill system. It is difficult for me to come up with a scenario where I wouldn't allow "Athletic" on most strength checks. Note that 4e saw this to some extent as well (i.e. you'll always use Endurance as opposed to a straight constitution check if you are trained in that skill). At that point, a skill system consisting of six skills ("Strong", "Dextrous", "Tough", "Intelligent", "Wise", "Charismatic) can be envisioned, which isn't something that anyone wants.
Taking that into account, I'd like to revise my system to include skills that are still broad, but that will obviously not be tied to 100% of an ability's checks. Someone mentioned a skill, for example, such as
Mountaineering. Such a skill might apply to Strength checks to climb, Constitution checks to survive in the cold or at altitude, Wisdom checks to survive in the mountains, etc. Perhaps I wouldn't use this specific example, but something similar.
Alternatively, it may not just be that I necessarily need broad skills, but I still would like skills that cover the expected competencies without becoming too complex, as mentioned by @
JamesonCourage .
As an example, the current Commoner background feels like it is missing something. A commoner gets drive, handle an animal, perform?, and spot. You can hide among the common folk, and you also select a profession. However, currently there is no indication that, if I were say a fisherman, that I'd be able to add my skill die to actually fish. And if I could, there is no indicated ability (though both Dexterity and Wisdom are obvious). As written, my commoner is better at performing than a soldier or sage, but for things such as gathering information in a village, predicting the weather, or haggling over commodity prices, I am just as good as the soldier or sage* (and if he has a better Wisdom and/or Charisma, I'll actually be worse). *Actually, the sage has persuade, which would probably apply to a Charisma check to haggle.
In short, if narrow skills are the answer, and assuming that backgrounds are the method to delineate skills and the competency they represent (which I'd prefer), then there should be an very long and detailed list, and characters should have numerous skills from that list. Also, my commoner fisherman should be better at haggling fish prices than the sage.