I'm surprise someone notice it and discuss about it.
Yes, it's one of Falout style's great flaw, the stat blocks you freedom to do something. the ancester of Fallout name Wasteland doesn't have this problem because it was party based game and you can increase you skill with using the skill or use skill point at library.
so if a skill is necessary and used frequently, the skill increases to help you to solve situation. and for some skill that used not often and only necessary at some point, you just let one person to learn that skill and it's not hard at all. but at Fallout, you can't control you companion but only yourself. the skill only increase when you use skill point but you should increase proper skill to proceed. since you are busy to increase useful skill, useless skill is hard to increase so freedom of skill is broken. and for skill usage, since the skill is ambiguos(think about science. there are plenty of genre!) the skill usage is too simple. if there's a computer, use science, if there's something broken. and another problem is there aren't much situation to use all skill. what you need is just a combat skill, speech, science and that's all. since the traps are weak and useless, you don't have to increase trap skill. you don't need to increase medic skill since you can get enough stimpacks to heal you Hp. at Wasteland all the skill has it's role. even the helicopter driving or toaster repair skill has it's usage and it's convinient. so I can say it's design miss of Fo1.
but it's not only a flaw. if you make stupid character, it would be hard to complete game but it's funny. the developer makes way to complete game for idiot! the best way to enjoy Fallout 1 is just play the game without walkthrough. if you fail, then retry Fo1 isn't that long game. learn the game you own is one of the enjoy point of game. and for useless skill, they are not useless. they have their role and good points though then can't help you to solve quest directly.
at Fo2 it's solved little bit by skillbook vander, companion and various situation.
at Fo2 some companion has skill to use instead of you.
you can let them to use skill instead of you if your skill isn't high enough.
and for situation more skills are useful for lots of time.
for outdoorsman, it wasn't that great help at fo1 because enemies are weak and events that happens you skill is low isn't that critical.
but it's useful at Fo2 because enemies are strong.
there's lots of situations that medic skill helps a lot.
anyway the article became too long and I doubt I wrote this article with correct word and grammer but I wish my article can help you.