Using Hive is pretty easy. It's the initial learning how it works that seems to be a hinderance in my experience.
People are lazy. If they have to put a lot of effort into learning a new system, they're not as likely to switch as the would be to something vaguely familiar.
The general use is easy but it’s all the ins and outs. Voting percentages, Resource Credits, delegation, curation and author rewards, rewards curve, Communities, multiple passwords.... just all the stuff that goes along with Hive. I agree most just want to not have to think about anything and let the upvotes fly. Lol. Plus I am terrible at explaining things. Lol