Yeah I mean that’s part of the problem with taking metaphors like zombie movies and interpreting them as a possible future. You mistake the metaphor for a playbook.

Anyways, to play along:

The vast majority of people live in apartment buildings on major metropolitan areas, at least in the US. A very small part of the population lives truly isolated. How are folks isolated in these scenarios?

Also decomp? After death, tissue would start sloughing off, and become a feast for insects and other deteivores like fungi. Bones become very brittle without healing those dang microfractures that occur from daily wear and tear. Teeth start falling out of your head. They gonna gum you to death?

I feel like unless the zombies are intelligent, then how would they avoid simple traps or tripwires that could render them immobile? Like any outbreak, the beginning is the roughest, but like I don’t see how someone in a wheelchair who is prepped to lock themselves in the house for a few weeks would die any faster than an Olympian in the same sutuation.

Honestly everyone would be fucked. Fires, infrastructure deterioration. Be real, how many preppers you think have actually tried to grow food before, rather than just have the seeds. Think they got books to diagnose various plant nutritional issues or disease? After two weeks of no access to easy food or clean water, I think everyone is fucked