in my opinion, cryptocurrency trading is not a real business, it is a digital business.
Real business, digital business or whatever business you want to call it, business is business, as long as you are earning money it is business, as long as it is your occupation it is business, or even your profession, it is still business.
I categorize real businesses like buying and selling physical goods, such as vehicles, food, medical devices, and others. that's the real business.
Maybe not, the only difference is that you only buy and sell tokens just like physical goods that you have mentioned, I don't why you use the term "real", it is like you are saying that Trading is a "fake" business or you are playing by Trading. I will consider Trading as a real business because it is more complex and the earnings in Trading is much bigger than what you have mentioned physical goods.
besides, business people don't always get profits. some business people also suffer losses in a year.
Just like in Trading. Traders doesn't always gain profits because like "real business" traders are also people that is not perfect and made mistakes, that is why they are losing profits sometimes.