I think it depends more on how willing you are to take risks as a person, and not on how tech-savvy you are, when it comes to investing in bitcoin. Even if a person is not high on computers or the internet, when you explain to them the concept of cryptocurrency, they may be ready to invest. If a person doesn't like taking risks, no matter how tech-savvy they are, they will find reasons not to invest, most of them being along the lines of, "this looks like a scam".