To my knowledge the first cryptocurrency was Bitcoin. Do you agree?
Since 2009 Bitcoin was launched by a person on behalf of Satoshi Nakamoto (aka) there have been very many positive things that have been obtained by people in the cryptocurrency space. Because Bitcoin has a limited stock, thus making the price of BTC expensive and then in anticipation of people being able to invest in crypto, Altcoins were born as an alternative.
Please give suggestions if my post is not correct.
In the first place you are correct that Bitcoin is the first cryptocurrency that has been boomed for more than 1 decades now.
Then, regarding about your concern question, some of the government country didn't accept the cryptocurrency if the exchange platform
is under decentralized based platform but if it is centralized exchange some of the country they are open for this matter.