Don't underestimate children. A real contribution would be to balance your life so you can be there for them. Most likely, your buying is a result of the guilt you feel for not having enough time to spend with your children. Buying is a false substitute. It's an illusion.
Life is about compromise.
You must figure out a way to maximize your time with your family. By putting yourself in debt, you put their future in jeopardy and make the problem worse. Get honest with yourself. You'd be rather be healthy alone than sick with someone else. And if you have to pay friends to like you, they're not much of a friend.