How do you know when your ready?

A couple of days ago on our way to school Carter was reading his Lego club magazine, and very much deep in thought. I was sorta day dreaming so when Carter said "Mommy, there is something I really need to tell you. I'm not really sure how to say this but, I'm don't think i'm ready to take it to the next level!" I sat there for a minute a little perplexed and then decided I better find out what the "Next level" was. He told me "Mom it's my lego's, i'm just not sure if i'm ready to go to the next level with my building." He then held up his Lego club magazine, and on the front in big letters it said "Take your building to the next LEVEL!" But I guess for Carter this relationship was moving just a little to fast!