Because just like hunting camp last year within the first day everyone would eat my stash of nutter butter bars!

Also it would be harder to elude the zombies in a large group. Smaller 3-5 man teams can hide better and cause way more damage to a large force. And if you have to survive living off the land a small group is going to be easier to feed then a large group.

But after bugging out we could all meet up for a monthly brew ha fest!