The best way to create healthy habits with children is to engage them in conversations regarding health at a young age. Developing a trusting doctor patient relationship is important, and can foster comfort discussing medical concerns or even bringing up questions related to issues at school, home, or friends.
Younger children such as babies and toddlers often have negative experiences at doctor's offices, being rushed through a visit with poking and prodding. I make my patient's comfort a top priority, as first experiences often color one's future attitudes about health and wellness, so I strive to make visits a positive experience.