It will never happen. Some players don't necessarily use just their main stats. It depends how you use your character. I could see you not being able to pick up heavy armors if you only can wear mediums.. but that's about it. Even for jedis to pick up blasters.. Because they can get the mods from them. Some of them need some aim or whatever the stat is.
I will be nice and not say what I think of your post, I do advise you though to read up regarding how items and stats work with characters.
What you write really, really proves my point in having a common sense lootsystem where the right items end up in the right hands. Players not knowing how the game works is one of the reasons