11 year old day trader!

Hello my son is 11 years old and loves to do YouTube vids he has been wanting to do pranks to try to get more viewers. I want to start teaching him how to start day trading and making YouTube vids instead. He is very smart with an IQ of 120 at the age of 8. What are your thoughts on this people? I was going to try to start him out on a site called Coins2learn, has anyone ever used this site?