Personally, I will be choosing the two if I have those two options. There is no harm in doing that as far as I am concerned. This is a space that is growing everyday and there is a lot of potential here as long as you know what you are doing.
On the other hand, business is something that if you do right, you will also be able to make something substantial from it too, as you keep expanding into other ones. One thing about being wealthy in the long run is all about being smart. So distributing your eggs in different baskets, will put you in lesser risks.
I am agree with your opinion. Doing both is good as long we can maintain the risk. Doing a real bussiness creating a new jobs for people and its true that we should distributing our risk and opening real bussiness is good option
The thing is if you can run a business very well and make it established / sustainable, it has a potential to make you gain consistent passive income.
While if you invest in cryptocurrencies where most of them are utility tokens, there will be only 1 time profit when you sell the tokens.