I grew up during "Women's Lib" so my son and daughter were raised as equally as I could, but I noticed that once my son got married, he let his wife start taking over all the chores. It infuriated me! Well, once their kids were born, and now that his wife is ill, I notice that my son has slipped back into taking care of things as if he had never taken that little break, courtesy of his wife.
I think it lends creedence to the theory that they fall into "let somebody else clean up after me" simply because they can. Which means, ladies, that those of us who continue to facilitate these behaviors are our own worst enemy. [Roll Eyes]