Bitcoin is meant to be use the same way we use our traditional fiat currency but the difference is that bitcoin is in digital form. It is a store of value, it can be used for purchasing of good and payment of services, It makes financial transaction easy and global.
Yeah this is how probably bitcoin works, helps you in doing transactions easily. As well as easily convert money and pay some bills or establishment who did not accept bitcon. As of today there are only limited stores and establishments who are accepting bitcoin but soon enough more people will start using bitcoin. That is why bitcoin is the future.