The best part about doing WDW with your adult kids is when someone gets tired and cranky, you can just send them off by themself to take a break, get a snack, whatever they need, and meet back up later.
We went with our adult kids in 2017 and had a blast at Trader Sams; we also were treated to free Champaign at Cali Grill after we told them we were celebrating our youngest’s college graduation.