I don't think most people understand enough about electronics or circuitry but they can use their computer and phones just fine. Bitcoin is a hard sell to newbies because at the moment I don't think it is much use to them especially as bitcoin's biggest positives seem to be political or capitalistic (if you're in it to try make some money which could be a 'hook' but as we have seen recently it's not a sure thing and people seem to have lost money rather than made it but the potential is still there). Most people sadly don't seem to care that much about economics nor do they understand it enough to see the benefits of bitcoin and get involved with it but maybe they will over time.