Calling it pocket money gives it a demeaning aspect, but in reality it works. Of my siblings, I think there is only one where the man, one of my brothers, is in charge of finance. In all the others, the women, sister or sister in law is in charge. That does not mean to say that the men in question are treated like children. On the contrary they are all intelligent, highly skilled professionals who have an equal share in various family responsibilities. But their wives are better at managing the finances so they have ( in all cases) happily abdicated responsibility to the other half. Quite honestly this means they get pocket money( call it what you like if it sounds better) and the rest is managed by their wives. In my case I manage the finances, but sometimes I can't turn on the television ( it's bloody complicated!). As to how much, well it really depends on the circumstances, but basically its enough for lunch each day, the paper, and a few extra quid for bits and bobs. If Mr.V needs anything else he has a credit card, but any major purchases are a joint decision. And yes, I do check the credit card bill, but only because if it were up to him he would never open the envelope.
At the end of the day it's very difficult to 'change' a grown man, and a lot easier to play to your respective strengths.