Age group for this school really matters here.
Is this a grade school middle school or high school?
Those are very different groups.
Any age. The key is positive attitude and encouragement. I told my son when he was 5 that I wanted him to be a success and make lots of money. Pay attention in school and put in the effort. He now has a great job in Washington, DC making almost six figures. My parents sent me to school and just said “work hard” and not much else. I’ve spent most of my life working crap jobs and struggling to get by.