My son will be 3 in October and I wanted to get him in to preschool. He is half way potty trained. Should I wait until he is 4 to put him in preschool? He is super smart. He knows all his letters, shapes, colors and can count to 15. He is very polite and kind with everybody (but his brother lol) and I really think getting him in early can benefit him even more. What do you ladies think? Is 2 to early?