It all depends upon you if you have the skills and knowledge about cryptocurrencies go with cryptocurrencies. But my suggestion is that only invest in cryptocurrencies if you have spare money in banks that you won't need to use on daily bases. And if you know business very well so it is wise to invest in business. You can do cryptocurrencies as side business.
We have to rely on cryptocurrency investment for a side business from spare money to focus on long term investment, but we can focus on the main business developed from your talent and I choose another investment business in gold and stocks, I think both choose passive income if we have it in long term investment.