Why should i invest in bitcoin or other cryptos ?
If you buy land, each year even if you don't work it you get weeds ... if you dry them you can use them to make a fire ...and in turn that generates energy ...
Meaning: that piece of land is giving you a dividend each year .
Where's my dividend if i invest in crypto ?
The real question should be, "why not"? Bitcoin has passed all the tests of time and we've seen how it developed and grown through the years so I don't think there's still any reason for us to doubt it as an investment. We'll only miss the opportunity to earn a good profit if we'll just continue doubting. It might take too long but there's a sure profit in Bitcoin if we'll only learn how to deal with the market.
I agree because back in 2016 when I have not really known much about Bitcoin, I never hesitated to invest just because I saw from the little I knew that I could make profits from investing in it and that was it. But over the years I have come to fully accept that this is the best form of investment now and will continue to do so because like you said, Bitcoin has passed just about everything test against it and continue to strive.