If someone breaks in and steals your car keys isn’t that covered by your car insurance?I don't live in rural Scotland, I can see the lights of a city from my living room window.
Its not a matter of danger, you say you don't insure your house, or lock your doors.
If someone takes your keys and you don't have home insurance your have no theft cover for that vehicle.
But more importantly if a family member or visitor is hurt or killed in your home and you don't have insurance, you could have some questions to answer.
House insurance is needed for the building but I don’t see the point in contents insurance