the mobile home / "trailer" park thing in the US is insane. as said in another post in here, it's the most predatory housing scheme the US has going. even if you can buy the home (because they are cheaper, cash out the door than a house), you're still paying absurd lot rent and other utilities. also, the structure is absolutely not going to protect you in an extreme weather event. even if your weather is a permanent paradise, it's going to be falling apart in 15 years. if there's one bad storm, it's going to be fucked up. they are meant to be temporary structures. like for a construction company or a disaster situation. so of course someone was like, "oh yeah, you can live in this."
also, they are not mobile. they are usually over some county line and existing in some place that has zero services or housing regulations. and it is a little fiefdom where the guy who owns it probably owns the only gas station and convenience store nearby.
i've had various family that lived in trailer parks, and despite thinking they had some kind of equity, when they finally needed to leave the place for good, they were always walking away with nothing, even if they had "bought" the trailer. also, having seen trailer parks in the UK, they seem to have some kind of council standard at least. the units all look clean and the grounds well maintained. in the US, 90% of the time they look like a movie set for a movie i wouldn't watch alone.