It's her father's, to do with as he wishes. If you don't have that line of thinking, I've got a red star for you.
Is that the best you can come up with? Look sir/ma'am, do you really believe Paris Hilton deserves a dime of her family's wealth because she's a member of the lucky sperm club? Yes, it may be her benefactor's wish that she stands to inherit $300,000,000, but would you say that she's earned it? I don't begrudge anyone's earned wealth, but the greatest legacy/inheritance a parent could leave their child is a value system that allows them to seek their own fortune, which, to the best of my knowledge, the comely Ms. Hilton has yet to demonstrate.