If everything is an optional component the onboarding process might get pretty overwhelming for the average user

They’re differently working on it

I have a TP-link Tapo D230S1. It comes with an indoor chime that acts like a hub that has an sd-card slot. The hub supports up to 4 compatible cameras and 64 other devices. It’s also pretty affordable and easy to set up. It is however battery only, but it lasts for several months between charges.

I don’t know of any smart doorbells that can also open doors. Maybe you could use a shelly relay or something similar?

Cost of doing business

Correct amount of fingers at least

Cries in $8/gallon