That's fine if you don't want to do that. Really. A lot of people (and, to be clear, I'm not saying you specifically here) fall into the trap when seeing things

That's fine if you don't want to do that. Really. A lot of people (and, to be clear, I'm not saying you specifically here) fall into the trap when seeing things like this and they feel like it'll be forced on them like someone will come along and just build a second house on their hand and say "congrats, you're a landlord now". But plenty of people will do that. They will want the extra income. The problem is currently that's literally illegal in most of the US. As for evictions, these vary state by state but evictions are only really a huge problem with housing supply is so restricted. Yes there are some bad actors. But a lot of times eviction means homelessness for some people. I'd personally be OK with making it relatively easy to evict someone who is living on your property (as opposed to say living in an apartment building). But a very real problem with treating real estate as an investment is the owner profits by forcing negative externalities on their neighbours without having to suffer through them themselves (eg AirBnB). We need to clamp down on that.