Kenny's "there can only be five" is bullshit from the first breath there. In desperate times 10 people could come aboard, just like 20 people in South-East Asia are able to live in a one room, 20 sqm, apartment nowadays. It's not ideal, but hey... wanna live?
This part of the storyline is a western (Hollywood) way of seeing things, not a Zombie Apocalypse. Sorry... but true!
“Dogs never bite me. Just humans.”
- Marilyn Monroe -