Quote from Arithmos
Listen. I can kill a zombie with my fists. I don't need to craft a diamond sword to do it. That is the charm of this game.
But with experience points will you be forced to go grind mobs or whatever just to level up so that you are strong enough to kill some mobs or to mine some dirt faster? That is lame sauce to the max. It is not creative at all. It is borrowing something that has existed for decades.
Are you forced to tame wolves? Are you forced to create wheat farms? Are you forced to fight creepers? When has this game ever forced you to do anything?
If the system turns out to be anything like that, which I sincerely doubt that it will, you will either want to be better or you won't. You won't be forced into anything. If the game does force you into anything, contact a medical professional.