Yeah, I'm not around or just forget to pay something. For its potential downsides, the fact that I basically don't have to think about a bunch of my ongoing billing (including essential stuff like electricity) is an admittedly first world but nonetheless big improvement over weekly write checks/mail envelopes ritual as I did for years. (Certainly there are incremental levels but I carefully evaluate new subscriptions and don't really have an issue with automatic billing.)
I sort of have a compromise solution for this. I use my banks autopay whenever possible which is a push instead of a pull. That way I can just shut it off instead of finding some weird website I haven't used in a million years or call and wait on hold for 20 minutes. I started using it mostly so I didn't have to buy checks but I saw it had some advantages beyond that.
It doesn't work well with variable bills though because I can't schedule an amount I don't know yet to be paid. I'm stuck using a pull for my power bill for instance.
You go on vacation and bill pay day was in the middle of it. Or you're just busy and forget to move the calendar reminder to tomorrow. Or you get through half of them and get interrupted and forget you didn't finish.