greatest thing to do is to have a kid or kids. However we just have one and we could not be happier with her(great work ethic, great student). My wife has 3 siblings but she is definitely not the favourite. So my 95 year old father in law does not get cadillac treatment and we just do what is necessary. I have seen how destructive preferential treatment can be. Parents must treat children equally or else it sets the siblings up for long term fighting.