Good grief. If someone wants to make a fighter that is useful outside of combat there are plenty of options. It's not like they're locked out of anything, if they want proficiencies that's what backgrounds are for. If you really want you can always take a human fighter and get expertise.
The only thing stopping a fighter from being competent in skills outside of combat is the player of the fighter. No, he can't cast charm person but that's only an issue if the DM never enforces the penalties associated with such spells.
As far as combat, fighters are simply more effective. Difficulty? Combat is as difficult as the group wants it to be.
The only thing stopping a fighter from being competent in skills outside of combat is the player of the fighter. No, he can't cast charm person but that's only an issue if the DM never enforces the penalties associated with such spells.
As far as combat, fighters are simply more effective. Difficulty? Combat is as difficult as the group wants it to be.