It's quite normal to stay in pubs and B&Bs doing the Coast to Coast - that's how my wife and I did it for our honeymoon. Wild camping is not lawful on any(?) part of the route, and organised camp sites are relatively scarce for most of it.

Plus it's a pretty unusual through hike. It goes through three national parks, but it's nowhere wilderness and you're never more than about 10 route miles from a village. Resupply en route is fairly trivial.