Hi! At what age did your children start cleaning up their toys? They'…

Hi! At what age did your children start cleaning up their toys? They've hidden half of the toys, and my son just dumps them all over the floor - cars, tools. He doesn't want to clean up after himself, so I try to show him an example, but he picks up one or two cars and throws them in the basket and that's it. Only when I finish, he starts scattering everything again. Everything in the containers is dumped out. The husband says not to clean up. But I can't live in the trunk. But even cleaning up for 3-4 times a day gets tiring.