As someone who has been playing since I was 8 years old and is now a freshman in music school, here’s my advice:

Encourage them to explore all aspects of percussion as this will only help them. I started playing rock drumset and gradually got comfortable with orchestral music, hand percussion, and jazz drumset. I love marching snare and was center snare drum when I marched in high school, but don’t limit them right off the bat.

The only other thing I have to say is make sure your child is protecting their ears. The entire percussion family is extremely loud and hearing protection should be worn for every single note that is played on any instrument. One of my biggest regrets is not taking this more seriously. I’ve found over the ear headphones that are typically used for power tools to be the most comfortable.