Not sure what the law is regarding using gas bottles for your hob. In France, my g/f's folks use a 20kg Calor bottle under the hob because there's no mains gas there. I *think* the jetting is different to mains gas.
As RobRX-7 mentioned, I also think you have to store butane (blue bottle) indoors and propane (orange bottle) outdoors. Different boiling points and hence more suited to being in or out.
As RobRX-7 mentioned, I also think you have to store butane (blue bottle) indoors and propane (orange bottle) outdoors. Different boiling points and hence more suited to being in or out.
You seem genuinely surprised that not everywhere is covered by the gas network.

What!!! I have never heard of anyone in UK who has to use a bucket in their bathroom. Almost every house my parents had that I lived in was not connected to the national sewerage system. Instead they had a septic tank in the garden. Normal toilets in the bathrooms, proper sewage pipes leading to the septic tank.
Just where I live out here in China, less than 5 miles from the city it's exactly like this.