Do you mean legit as in legal or legit as in good?
When it comes to legality, just like the other comments above, yes it still depends on your location. An article I read somewhere listed Bangladesh, Bolivia, Ecuador, Kyrgyzstan and Nepal as the five countries that have already made Bitcoin illegal. They didn't say exactly though if all kinds of cryptocurrencies are illegal and banned in those countries, but Bitcoin for sure is.
If you mean legit as in good, I guess it really depends on you. If you have enough extra cash to spare for investment, then it would be good. Thing is, unless you find something that will for sure be as popular as Bitcoin in the future, then it doesn't matter if you place very little investment. The chances to earn as much as those who invested on Bitcoin years ago compared to what they earned in 2016 and 2017 until today, would be very low, I believe. It's like hitting a jackpot if you find anything like that.
I would have to say that investing on crypto is just like gambling - you win big or you go home and lose all/most of your money. You really have to extensively research and study about it to make most out of your investment, if earning is your purpose in the first place.