Should kids be paid to take care of their parents?

This Wall Street Journal item ($) notes the growing practice of drawing up formal contracts between seniors and the children who are helping them with their daily tasks. When a child is making career sacrifices to make such a contribution, a contract makes a lot of sense.

Another big potential benefit, if the contract is commercially reasonable, is that it won't run afoul of the Medicaid rules.

Could contracts also help to deter instances of elder abuse, which JLM has been noting lately?