OP, I hope this Marin law starts a trend:
March 25, 2025. Marin County will soon become one of the first counties in California to regulate the use of electric bikes for children under 16.
https://www.ktvu.com/news/marin-coun...e-e-bikes-kids
The availability of low-cost Class 2 eBikes online is part of the problem. Furthermore, the parents purchasing, or allowing the purchase, of these Class 2 eBikes, for their children is also the problem. They are very uniformed of what they are actually buying!
Edit: I had to look up "IHT" to understand the reference in the original post. I figured it was a Multi-use Trail/Path. IHT = Iron Horse Trail in Concord, CA
https://www.ebparks.org/trails/interpark/iron-horse