I have seen that many people leave their old parents and start living alone with their spouses. If you ask them the reason of doing so, they say that old men are a burden. They forget that those old men their parents who tolerated all their tantrums when they were young without any complain. Even if parents are staying with them, they will criticise them, make them feel unwanted, and some even become abusive. How can children become sp selfish and not give support to their old parents ?