I think bitcoin will make people rich.People who buy bitcoin before 1year they knew how profit they made. I think bitcoin will take place in the world's economy.
I think online storage system like coinbase,xapo,blockchain etc is trusted for keeping bitcoin. I think this is safe.But who wants to trade with bitcoin is a good idea.
I think using bitcoin is better than credit card. It really good system.I think people who use bitcoin for shopping and other work they have a good choice.