More accurately, everyone likes the idea of having the freedom to do what they want - but not the freedom for others to do what they want. Or, I like the idea of being able to build me own house free of officialdom telling me what I can and cannot do, but I don't like the idea of someone else having the freedom to build something that I might not like.It's a catch 22. Most people like the idea of freedom to do what they want, build what they like, where they like, but virtually nobody wants the countryside littered with horrible little shacks and shanty towns.
There are two ways round the problem here :
1) Live in a country where there's so much space that many people can build things so far away from the neighbours that no-one is bothered.
2) Have some form of body that regulates what can be built where, so that there is (at least in principle) some sort of "fairness" to it.
BTW - According to one old Grand Designs, if you can live on a site for 10 years without "the authorities" complaining it seems you then gain the right to live on it. Don't ask details, I only know what was said in the program - the guy had lived on site (part in a caravan, part in a room at the back of his workshop) and so he had a legal right to live on the site. That meant that they couldn't refuse planning on a "change of use", only on style etc which is harder for them to justify. He was building a timber frame that came as a kit from somewhere in Scandinavia.