any interest in a young kid's ride? like 4-6 y.o.?

My friend's 4 y.o. son gave up his balance bike which hed been clinging to and just started rocking a 16" with no training wheels, after seeing my son recently without training wheels. And my son has been starting to rip it up on some super easy singletrack. And I know Mike and Joelle's son is in the same stage too. Anyone else out there have a kiddo about that age and skill level?

I was thinking maybe we can put them all together one morning or afternoon and let them shred together. I noticed my son started standing and pedaling not after my weeks of attempting to convince him to try it, but instead after he saw some other kids at the park doing it.

I realize schedules vary and such but it'd be cool if we could get a group of like 3-5 kiddos together, I think they'd learn a lot from each other and have a blast. Just putting a feeler out there, if anyone's interested, chime in!