My parents did this in their early 60s and it’s been great for 15 years. They are now 78 and 75 and it is now an utter pain in the arse, they are starting to have health problems. Both will be losing their driving licences in the next couple of years, so they will have to move.
Rural bus services disappear overnight, do not depend on them being there in a years time, let alone when you’re 80.
Where is your nearest A&E/Major hospital? Budget for cabs to and from if you can’t drive. Mums is about an hour away and it’s between £90-100 return. if you are having lots of a appointments or treatments it gets expensive very fast if you have no one to take you.
Mobile Phone Signal- is there one?
Broadband - are you in the network or are you looking at Satellite Broadband?
Are there any neighbours? Honestly it really doesn’t hurt to have some in an emergency.
Does the local pharmacy deliver? At least online ones exist now so not such a problem but handy in an emergency.
Land - who is maintaining it?
So just be prepared that you might have to move again at some point. But I do get the attraction to doing it :)