I just turned 30 this year, and I wish I had known about paleo in my 20's. It would have saved me a lot of misery. I switched to Paleo for several reasons. Mostly because I just felt miserable. The chipper girl I used to be was gone, and I wasn't about to drug myself up trying to find her again. My daughter is also 3, so I wanted to give her a good foundation to start things out right. We switched to a lot of organic stuff for her, and she eats fairly clean, however I didn't hold myself worthy of these same standards. Now that my husband and I are on board, we're like a new family.
The weight I have lost along the way (down 54 lbs since March!) are all the perks. I also found that girl I had been missing and more. :)