Over the years I've done months of the type of free camping your friend envisions, though with my husband. It's a big country out there and we have almost always been able to find areas remote enough to be completely alone.

The only "danger" we ran into was a curious bear in Denali Nat. Park that circled the tent and sniffed for a while.

The only "weapon" was a small flare dispenser we carried for hikes, though nowadays a bear spray would be packed also.

For 2 legged danger, I'd guess her current choice is fine, and I wish her happy trails.