New here! 
I've research about it. I saw that it can be used for buying and selling online. Some uses it in trading. They buy and sell bitcoin for their profit. Some people make money online and they use bitcoin as a payment. That's it from me. I hope it helps
Yes, I too, I mainly used to invest, fancy is its appreciation of space, that my country still prohibit bitcoin, so I can not directly use bitcoin to buy things. I've research about it. I saw that it can be used for buying and selling online. Some uses it in trading. They buy and sell bitcoin for their profit. Some people make money online and they use bitcoin as a payment. That's it from me. I hope it helps