Take on Cryptocurrency - Dogecoin,Ether, Bitcoin,XRP?

Most investors are nowadays picking to invest in crypto and Bitcoin as their first crypto choice. But Ethereum, which surpassed the largest cryptocurrency with a double margin year-to-date (YTD), is a great option too. Also other cryptos like ripple’s xrp, elon musk’s favorite crypto trending nowadays “dogecoin”, latest in news coinbase etc. It is just a bubble or it is really worth investing in cryptos?

I think most of the countries in the world not allowed Cryptocurrency usage and transaction. What do you think about this restriction?