You. Yes, you! You're a first time mom, younger than me, and still in your twenties (hey, it happens when it takes you 5 years to have a second baby). You've openly admitted that you have your baby in Gymboree classes to give them an edge - a boost - over his or her peers.
In essence, you have your baby in Gymboree because you hope they will be the opposite of my first Gymboree baby.
And here I come. I'm kind of the antithesis of most Gymboree moms. I'm older, I'm here with my second child, and I long ago gave up on having a nicely monogrammed matching blanket and burp cloth set to place my baby on for class. He has the closest blanket I could grab before leaving the house, and I probably have spit-up, pee, and/or peanut butter smeared somewhere on my shirt. I'm a second-time mom; it's just different with two.
Ah, yes...you asked about Jack. Yes, he did Gymboree for 2 years. Actually, I did Gymboree with Jack for very similar reasons as yourself...I wanted to give him a developmental edge. My motivations for this were slightly different, though. He was showing delays and I thought - erroneously - that putting him in Gymboree might sort him out.
Except it didn't. Jack was in Gymboree for 2 years and he still was diagnosed with autism. He had 2 years of developmental activities and social skills through Gymboree and it didn't make a world of difference. He still was autistic in the end.
That's because in spite of what any programs like Gymboree will tell you, there's not a lot we can do to change the trajectory of who our kids are hard-wired to be. If there's not a ton that a good parent can do to screw their kids up, then there's probably not a ton that good parents can do to give their kids an edge.
Here's my point: don't do Mommy and Me-type classes like Gymboree hoping that you are instilling prodigy-like qualities in your baby. Focusing so much on your child's development (or, in my case, lack thereof) will only lead you to worry and miss the finer moments, like the way your baby strokes his hair while nursing/feeding, his favorite tickle spot, and when he first grabs his own toes.
I say this from experience because I don't remember a single one of this little things about Jack. All I remember was how he didn't eat, how he couldn't walk or crawl, and what he wasn't doing. And I HATE that now. In many ways, I'm having to play catch-up now with Jack and I'm learning to say "to hell with age-appropriate!" and focus on his childhood.
Don't make that same mistake.
Sure, I do Gymboree with my new baby, but that's because he likes it. He's a social butterfly and he enjoys the fun of it. I suggest you do the same. Go to learn how to play with your baby. Go to have fun. Go because your baby enjoys it, but don't go to get an edge.
Don't be so focused on the activities that you don't take lots of pictures. Enjoy this time; it really goes by fast.