Others are basically hoarders, and the junk simply accumulates.
It's hard to tell the difference from a single snapshot.
My current city doesn't allow you to have any non-functional vehicles anywhere on your property, unless garaged.
Never understood it. Being older now and owning my own house, there's a house on the same street as mine with kids getting up to similar hijinks and it's honestly nice to see them getting into hands on hobbies. I stop by and chat with them about their ongoing projects every now and then. Crushing someone's passion hobby because of some perceived slight to neighborhood beauty just seems mean spirited.