Is it true that a major reason people are buying Bitcoin is because it is outside...

...the system & decentralized? I've realized that under the current issue with the indefinitely growing Blockchain problem, Bitcoin is going to have be restructured in a way that will bring about some centralization into the mix. Perhaps the centralization could bring Bitcoin under regulatory control and it will no longer be outside the system as it is now. This said, is it true that a main reason people are buying Bitcoin is because it is outside the system, is decentralized and is not bound to as many banking laws?