They won't. They figure that the remaining three are 'street smart' and in a way they are. All three stay away from the road and roam the backyards and such, but that doesn't keep away other dangers like dogs and people.

I love my girls to much to let them be outdoor cats. Tyran has a natural curiosity of the outdoors, so I plan on harness training her and taking her outside a few times a week when the weather is nice. Miki is too scared of everything. She would flip out to easily. She will never set foot outside if I can help it.