Still a good time to get them started. We got the youngest granddaughter, 4 yo, a bow outfit at Target; bow, arrows, target and stand.
You can get certified as a coach if time would permit for practice. Tournaments are on weekends. Our team meets for about 90 minutes after school, Tuesday and Thursday. Some schools incorporate it as part of the PE class. I'm retired so time isn't an issue. Been doing this since 2014.
I'm not NBA, MLB, NFL material due to being to short, too slow and too chubby when I was a kid. But...I can shoot a bow and turn in good scores. My coach's challenge is to match or beat my best score or worst arrow. The latter can be embarrassing, BTW, this coming week, I'm shooting LH! Prizes are mini candies.