[Question] Which technologies are stuck on initial adoption?

Video calls have been with us for a while. Except, they were rarely used. IME, people sometimes had Skype calls with relatives abroad and that’s about it. And then, COVID happened. Suddenly, Zoom skyrocketed, with Google Meet not far behind. The reason is obvious.

Now, the time of lockdowns and restrictions on gatherings is over, the incentives to do video calls are (AFAICT) more or less the same as pre-COVID, and yet video calls persist. They became a completely routine way of doing business meetings, academic seminars and occasional social events. Why? AFAICT it’s just the initial adoption barrier: once everyone did lots of video calls, and realized they are actually pretty convenient, they just kept using them.

So, here’s a fun question: What other things are like video calls in the pre-COVID era? That is, the technology exists (more or less: maybe the UX needs some trivial improvements), the use-cases exist, only nobody uses it just because they’re unaware or because it’s not a “normal” thing everyone does. Given something to create initial adoption (like COVID did for video calls), everyone would start using it and never go back.