I don't understand why browser vendors just don't have a simple "DISABLE AUTOPLAY EVERYWHERE UNDER ALL CIRCUMSTANCES" type setting, that the browser then respec

I don't understand why browser vendors just don't have a simple "DISABLE AUTOPLAY EVERYWHERE UNDER ALL CIRCUMSTANCES" type setting, that the browser then respects. I don't understand this weird focus on machine-learning user behaviour and second-guessing their intentions. Ugh.