Recently, my son (4.5) has been refusing to watch or listen or play with anything with a manufacturer's recommended age higher than his own.

For example, he has a Rock N' Learn DVD on Earth Science. He has watched it several times, often putting it in the player himself. The other day I asked him if he wanted to watch it (he asked me to choose a DVD for him), he said no because it was for grade 3 to 8 and he's not in preschool yet.

It's strange that up to now he has enjoyed all sorts of things with an upper suggested age group range printed right on the package, and now he says he's too little to use them anymore.

Should I cut out the offending MRA before he see's it?

What can I say to him to get him over this? It's like he's trying to play strictly by "the rules".