I agree with your words, indeed as long as we are not harmed by Bitcoin, I think it is legal for us to invest in BTC, even though the purpose of BTC is for payment because BTC was created as a digital currency by Satoshi Nakamoto, but I think there are many people who investing in BTC and saving it for the long term is what pumps the price of BTC and finally BTC is known throughout the world. I think in this case OP doesn't need to be confused because I think BTC is now increasingly popular. I even see more and more people adopting BTC. and simple examples such as Elsalvador which has legalized btc in its country.