I have already written some articles about smart play tables for children but I don't think I may overinform you in this subject. I do hope my articles may help you find nice furniture for your kids so that you wouldn't have to learn from your mistakes.
The children of age about 3 start spending more time at the table while making their art and craft works, and if we provide them the attractive and comfortable one, it would definitely help them to prepare better for school (where they would spend so much time at the desk).