My oldest who will turn 5 this month takes swim and dance classes at our local YMCA. If I let her she would do nothing but sit on the couch and watch TV all day so I was trying to find something active and fun for her to do. The first couple times I told her it was dance class day she said she didn't want to go. I told her that she had to finish this session since I already paid for it but if she still didn't like it when the once a week 8 week session was over she could stop. She LOVED the little mini recital they did at the end and has been dancing ever since. We are in our 4th session now. I may sign her up at a real dance studio next fall but I wanted to try something cheaper first to see if she was interested. I think we pay about $20 for 8 30 minute classes, that is the YMCA member price for non-members it was about double.
My youngest who just turned 3 will start taking swim lessons this month at the Y. You had to be 3 to take a lesson without your parent in the water so I waited until after her b-day and signed her up. She loves running, kicking, and chasing after balls so I think I'm going to sign her up for soccer at the Y when she turns 4.
The only requirement to me is that they learn to swim. Lots of our neighbors have pools and we go swimming alot in the summer and when on vacation. DH works days and I work nights so I'm with them at the pool alot alone and to me it is just a safety issue that they know how to swim since I can't hold them both in the water at the same time. And when they are older and going to friends houses I want to know that they know how to swim incase the parents aren't watching them as close as they should around a pool.
I think lessons/classes are a great way to experience new things and make new friends. I did lots of extra stuff when I was younger and I want my DD's to experience as much of that as possible. When I was a kid I took dance from Kindergarten through my 2nd year of highschool, I took a couple years of Karate, a couple sessions of gymnastics at the YMCA, lots of swim classes at the YMCA, accordian

, piano. At at my small school I was a chearleader, volleyball and softball player.