Originally Posted by kuroneko

It ends by not reinforcing bad behavior. You were proposing that we instead reward and therefore reinforce bad behavior.

It is simple Psych 101. The more postive reinforcement you provide to a behavior, the more of the behavior you get. The kid sees that his mother's demanding and rude behavior is rewarded not only with compliance with her will, but also with a glass of wine. Kids will emulate their parents, especially when they see that the behavior they emulate seems to result in rewards.