The importance of age

Driving in the car yesterday, the kids noticed a daycare. Since we've been looking at schools recently in Mérida, the kids are now aware of schools when we pass by them. I told them that it was a daycare and probably not even for kindergarten age, but Joseph thought it could possibly be for Jonathan's age to which Joseph said "for kids who are 4 and down." Not liking that comment at all, Jonathan retorted,"I'm NOT 4 and down - I'm 4 and up!!!"