Why not? It's the best cryptocurrency and the first cryptocurrency in the world so of course it's the best choice for everyone at the moment of course I'm not an exception.
I choose bitcoin, becuase it will help me to live my dreams and to help my family. And also to help other people. Aside from that, I prefer to use btc than the other altcoins because it has bigger value and this is the first cryptocurrency ever made, and i know this is the answer to get away my family in poverty.
Along with that there are also some other features of bitcoin which you have to know and which have attracted most people of the world to choose bitcoin for their use and to deal in that with any merchant. It is the easy use feature of it. It also do not have much fees of transaction and the currency is decentralized and do not have anyone control on it.