Ha, my husband's a farmer. Walking in fields is fine, as long as stick to the footpaths, and shut gates etc.
I don't make jam, but we do have a veggie garden, and make damson gin.
I enjoy walking in the countryside, having a beautiful view, space, quiet, subathing topless without being spotted, privacy etc. I've never got the hunting and shooting hobbies (not for me), or even young farmers. I tried young farmers, when I was younger, but couldn't get into it. My cousins loved it.
I met my DH through mutual friends, and I never ever wanted to marry a farmer.
We do have to drive to see our friends, but never known any different. Our closest friends all live within half an hour of us.
I've never felt isolated, but it's an areas I've grown up in, and always had friends and family nearby. We do often go to the theatre, whether it's Manchester, Liverpool, Shrewsbury, or Llandudno. We don't mind driving.
We both have friends and family in London, and probably visit them about once a year. It's having the money to do these things, rather than isolation, that's the issue.