I think the amount given should have something to do with the amount mom and dad get, (in our house that is zero, hence the zero allowence
.)
But then I also think if I want money I have to go work at something (no one pays me to do laundry) so if my kids want money they will have to do more than their 'share' of the work. I would rather help them make cookies to sell or something than just give them loot.