That's great for the kids, but make sure helping doesn't derail your own finances.
Before you offer to help (or keep helping, if you already are), take a look at your own financial picture, said Lynn Ballou, regional director for EP Wealth in Lafayette, California. Even small expenses, like having your adult child on the family cellphone plan, add up, and that's extra money you could be putting toward retirement or other goals.
"Your heart can sometimes be bigger than your wallet," she said. "If somebody is struggling to meet their own financial goals we don't want to be encouraging that behavior."
Parents and children should hash out a defined purpose and timeline, said Mark Prendergast, director of tax strategies for Inspired Financial in Huntington Beach, California. For example, you could let your child stay at home while she saves up the deposit to rent an apartment, or you could help with the utility bills only while he's between jobs.
"We try to encourage our clients [to think], 'How can you best make your child responsible?'" he said.
Observe your children — and ask them outright about their needs — to make sure you're offering the right kind of help. Ideally, your contribution would help your kids get on firmer financial footing, not live beyond their means, Sweeney said.
"When your children have their own resources and are able to get on their feet, ask them to pick up those expenses," he said.