Just to add a little to them, I have met lots of young people whose parents have given them very little in life, incuding love and respect and even the basics such as food, clothes and safety, but you ask them who they love and want to be with, yup its mum and dad.
RE: Older children moving back home
now I find that very sad.Money is not what I would put high on my list
a hug and kiss would be good.