I don't think bitcoin is that complicated, well, of course with enough research that is. It goes without saying, but information about bitcoin is proliferated throughout the internet. Anyone who is not acquainted with cryptocurrencies before can quickly pick up information and start using bitcoin. Of course, learning the mechanics of bitcoin and the blockchain is one thing. Just like credit/debit cards, you don't need to know a great deal about how it works under the hood in order to use it.