I would recommend you watch this week’s BBC programme, Cornwall, with Simon Reeves, OP
I second this. Devon also has its problems as well.
I live in Cornwall now after moving down from London a couple of years ago but the difference is that I grew up here. If you've spent your life with the convenience of London on your doorstep you are going to have a massive shock to the system because-
There are a lot of locals who don't want you here and whilst some of that is because there are arses, there's also genuine reasons for their anger like having to compete for jobs with incomers, driving up house prices so young Cornish people have to move away, changing the character of old communities
There is no diversity and a lot of racism
There is one motorway and it ends at Exeter, so the vast majority of Devon and Cornwall has no decent transport. In fact in the summer the M5 is a nightmare constantly and certainly don't even think of driving on it on a Friday
The roads are awful and you are totally dependent on driving on them because public transport is expensive and virtually non existent.
Getting to London by train is difficult and expensive. If you live past Dawlish then quite often the line is closed due to damage from storms (going to get better but will take time). Oh and the Somerset levels flood frequently which disrupts the train line there.
There's nothing to do in the winter and in the summer you can't get near anywhere because of tourists - our population in Cornwall trebles in the summer
There's nothing to do to entertain teenagers and you'll end up as their personal chauffeurs. It also means that as soon as they hit the right age you'll have to pay out for driving lessons!
Some areas are massively cut off in the winter
There's little choice in healthcare - think of all the hospitals you have in London? In Cornwall we have one and it's generally in a bad state in winter (and summer)
Job opportunities are sparse and generally low paid. Even if you are a professional, there are fewer opportunities and they are not as well paid as london and SE. If you're intent on moving down here I'd suggest you look for jobs in the NHS, teaching or local govt.
It is lovely here and we definitely need people with higher incomes moving down. We need people to open businesses here like in your husbands profession to bring money into our economy, but the risk to your family and your security is high.