No stupid questions right?

So I've been on mnk for 8 months and my weapon buttons aren't on 1 2 and 3 as they generically are. That felt weird for me and unintuitive to move my fingers off the movement keys to unequip/re-equip them. My question is how do other movement players on generic binds move around while holsters and unholstering while the binds are on the default numbers?