My DS is 7 and we’ve recently taken him to a couple of local races, junior park runs and a local community 2k, in that particular race he came 11th out of 75 juniors, the children who beat him were all older.
He really seems to enjoy it and does appear to have a talent for it.
His dad, my DP is a fell runner.
There is a junior fell running club on once a week locally and I mentioned to my DM that we’re thinking of taking him, she wasn’t keen on the previous races either.
She thinks it’s detrimental to his developing bones and that it may cause problems long term. She thinks we are pushing him into it (which we’re not - we wouldn’t entertain the idea unless he enjoyed it). She also didn’t like the photo I sent her of DS after his race, as he was bright red in the face and looked done in. All the kids looked similar. She said she’s worried it’s too much for him.
Honestly he runs everywhere, he’s a very active child and already does swimming & martial arts every week. He’s one of those kids who needs a lot of physical stimulation.