Parents, how do you feel about giving money to your grown (or nearly-grown) kids?

I guess the age of your children and your own financial situation probably contribute a good amount. In general, do you feel happy to be able to do something nice for them or resentful? Do you feel like you’re obligated to buy them gifts and/or send money once in a while? How often do you do it, if ever? Do your kids ask for money, or do you just volunteer it?