My family is very close. I'm 19 and still vacation with them.
Last summer, I was only 18 at the time, we went to Florida for 3 weeks. We spent a week in Daytona with my aunt and uncle, a week in WDW, and then the last week in Key Largo and Key West. Although we got on each other's nerves (we went with our big camper so it was close quarters!) it was the best vacation I could ever have asked for... It was my graduation present.
This past March, I went to WDW with my Nana, Pop Pop, uncle, and sister for 5 days. That trip was a little more tense because my grandparents didn't realize that we were able to go off to the parks by ourselves and we had some disagreements, but all it took was a phone call home and it was straightened out.
We just bought a brand new Chevy pick-up, a dooley (the "big butt truck"), and 5th wheel and so we go on mini-vacations. They're just a long weekend type deal, but it's a nice break to get away from the house and be with each other. We're also planning on going back to Florida this coming summer - our last family vacation. Ever. I'm applying for the WDW CP and will only be home for about 2 months in 2006, because in August I'm moving to St. Augustine to finish my last 2 years of college at Flagler College.
Yes, my life is totally planned, LOL, but that's the way I like it!
And I enjoy vacationing with my parents very much.