We have a pretty long driveway. It comes up the front of the house and wraps around the side to the garage. The part where it turns is the highest point, and then there are slopes, of course. Mira has recently learned how much fun it can be to come flying down the incline on her trike, and it was my mom who showed it to her. So, mom pushes/helps her get her trike up the incline, she turns around and comes flying down, putting her feet down herself to stop when she feels like it. These days, her preference is to turn her trike so it ends up in the lawn, and the grass naturally slows/stops her. She's been doing this for a week, with no incidents (mom started her a little bit up the incline, and then kept going further up at her request).
DH just found out on Saturday, and I'm pretty sure he blew a gasket. He's exceedingly cautious, and after mulling it over for a couple of days (I could see it coming), he asked me this morning to talk to mom and ask that she not do that anymore. I told him that I don't have a problem with it, and he can tell her himself. At which point, he said of course that it's my mom, and I should be the one to tell her.
Would you? If she falls down going at a high rate of speed, she'll skin herself badly and if she hits her head, she could hurt herself, I suppose. And he's worried that she'll run into the bushes and poke her eye out or something. I admit that all of that is possible (she's 2 1/2, so not 100% reliable on safety, although she is exceedingly cautious herself), but unlikely. Mira loves, loves, loves it. She is good about stopping, good about turning to go where she wants to go. Maybe I should just tell mom not to do that when DH is around (weekends).