I understand what you're saying but trying to look at it objectively I still think you should move. It just means being very specific about where you move to.
The sort of priorities are:
A bungalow that you like
In an area that is nice
An easily maintained garden
In a better climate (sounds as though almost anywhere in the UK is better
)
Close to the doctor or health clinic
Public transport close by
A local shop or easy public transport to a supermarket
As you tend to be quite happy to drive around with Bron then you will both soon learn the area.
As you seem to have mainly unpleasant neighbours you are unlikely to end up with worse and highly likely to end up with a lot better.
You shouldn't let the natural concern of what happens with Bron, if you go first, adversely affect the rest of both your lives when there's a good chance that you could both have a much better quality of life if you move.
Give it some serious thought. If nothing else, it would be quite interesting looking at what places you could go to and what bungalow you could buy.
Obviously, most of us are likely to be biased, for better or worse, towards the areas we live in.
Our area is really lovely but the property prices are ridiculous down this way compared to up your way. We live in a village of approx. 1,200 people with a very good doctor's surgery (with a dispensary), a village shop (co-op) that's open from 7 a.m. to 10 p.m. every day of the year, a post office inside the village tearoom, another tearoom, a couple of pubs, a couple of restaurants, a couple of takeaways, an excellent fish and chip shop, a few shops, two churches, a village hall with lots of activities, buses connect to a small town two miles away, two large towns (both with hospitals) six miles away and the county town 15 miles away - and cricket on the village green. There are no hills to make life difficult as you get older.
We average about 25" of rain per year. Whereas it sounds as though you get that in a month!
Then, of course, there are retirement villages. If you have a reasonable amount of annual income to pay the service charges then some of them are excellent places.