A solution involving much more work might be to put something soft around all the trees. Too much work for one person, but maybe if more adults agreed that this is a good idea...
(I saw a skiing hill for kids that had a lot of artificial soft obstacles. The kids had a motivation to navigate around them, but if they hit one, no big deal. Then again, a soft obstacle is different from a soft wrapper around a hard tree.)
One of the hills around here is very steep, leading down to a fence. After someone died, hitting the fence pretty hard (not the first time, just the most recent), they started putting hay bales at the bottom every year.
You could do something like that on this hill, but it gets much less sledding traffic and is much less dangerous than the other one, so it’s less clear it’s worth it.
A solution involving much more work might be to put something soft around all the trees. Too much work for one person, but maybe if more adults agreed that this is a good idea...
(I saw a skiing hill for kids that had a lot of artificial soft obstacles. The kids had a motivation to navigate around them, but if they hit one, no big deal. Then again, a soft obstacle is different from a soft wrapper around a hard tree.)
One of the hills around here is very steep, leading down to a fence. After someone died, hitting the fence pretty hard (not the first time, just the most recent), they started putting hay bales at the bottom every year.
You could do something like that on this hill, but it gets much less sledding traffic and is much less dangerous than the other one, so it’s less clear it’s worth it.