Do we stop teaching people too soon? There is plenty of scope to improve the way the skills of ringing are taught, but that's not enough on its own. — John Harrison
I fully agree with that and everything following it. I was lucky to be rescued from a mummified tower early on and advised to go elsewhere for help "Before you kill yourself" (quote). If it hadn't been for the TC / Branch RM of that tower who took me under her wing I'd have got nowhere, and she's still encouraging and supporting me to this day. But leaving that to chance doesn't seem workable in general, particularly if the numbers of supportive and skilled method ringers falls.
Once a band gets to that point it is very difficult for anyone to escape — John Harrison
Also very true. In the case of my home tower, the whole tower in effect escaped. That happened because of a chance combination of circumstances - retirement of older ringers, returning ringers, a new go-ahead TC and some keen recruits. I still wouldn't class us as being a method ringing tower but the desire is now there, at least. I'm not sure how best to support such sparks. It's difficult - parachuting in external help is tricky as it can backfire, and once people stop helping, as they must, there's a danger things will revert back to how they were before.
I think the isolation you allude to is a large part of the problem, in some towers it's seen as a sign of treachery to ring elsewhere, and that's often reflected in the standard of ringing. Perhaps the most immediately important thing the CCCBR can do is to make it easier for aspiring ringers to widen their contacts and experience, and to better communicate those opportunities? In which case, I think that's already the plan. But that needs to be backed up by actual provision of opportunities, and I think it's understood that's often not the case.