I've seen them, even rode some bikes with electric shifters, but still don't want the complexity. One of my bikes is over 20 years old with the same Ultegra shi

I've seen them, even rode some bikes with electric shifters, but still don't want the complexity. One of my bikes is over 20 years old with the same Ultegra shifters, I haven't done any maintenance other than lubing once a season and they still work fine. I'd be surprised if the battery on electric shifters lasts that long.