Freight trains. The funny thing is that I was never really interested in them as a kid, only once I got into my early 20s. There's tons of adults who love trains, but for some reason it's still viewed as kind of a childish interest and I'm not sure why.
The last time I drove out to watch some I was kind of disappointed though. It's been a long time, so I was actually surprised that out of hundreds of freight containers, 90% of them are now just giant Amazon logos, and the other 10% are giant Walmart logos. It kind of sucks. The engines make it worth it though.
Would still be a little difficult for people living in apartments. I always think about this when it comes to EVs, and owning "dumb" cars and maintaining them yourself, which I would like to do. My apartment complex has 3 or 4 EV chargers, which are assigned. So you would have to rent the apartment that comes with the EV spot, which I'm sure makes the rent go up by far more than it's worth. And no way is there room to work on your own car within the assigned spaces. No guest parking either. I guess it's just more stuff to add to the "cycle of poverty" list