This is what I’ve heard my mother say on a few occasions…that theres no better feeling than doing “aish” (or even saving) the money that the son gives her…typically b/c of the investment and sacrifice gone into his education. Of course when the son gets married, most mothers understand and back off…i haven’t seen any mother “demand” money from her son. Of course thats not to say that the daughter is any less…The money from my first paycheck from my first job ever, my mom still has that saved. 
Right, so wife has no right to husbnads money at all eh?
The type of man who gives everything to his siblings and parents and nothing to his own wife and kids isn’t a true man at all.