Come on, that is freakin’ great.
I don’t know that it’s practical, but our local park has rubber *ground *for the kids to play on. Something like this: Poured-in-Place Rubber Safety Flooring Surface Installer | AdventureTURF. My post is not an endorsement or recommendation of any kind; I’m just throwin’ it out there.
Any way they can put a laundry chute in? We had one in our two-story house when I was young and my mother swore by it. Going up the stairs with laundry was a PITA, but it was going downstairs with a basket that created the more unsafe conditions. A chute can be nothing more than a framed opening with smooth wood sides and a discharge a few feet above the basement floor, or a length of metal duct. Ours had a spring-loaded door at the top.
Upthread I suggested a low tech, cheap solution:
My mother just throws laundry down the stairway, so that most of it lands in a basket next to the stairs. And then when going up, she will put the basket on the highest step she can reach, so she’s not carrying it all the way.
I did this for two years after injuring my back during pregnancy. It’s not that dang hard once you think of it. Just carry a light flour sack towel to sit on so you don’t get dirty.