A lot of this thread is bad experiences followed by answers about existing resources which demonstrate better ways of approaching continuous learning.
Which means that the issue is not that there isn’t a known set of techniques to support learners to continue to progress but that some towers are not making use of these resources and get stuck or prefer another way of doing it, despite this leading to frustration for at least some of the ringers in the tower.
Tristan says that lacking humility to unpick flawed teaching is part of the problem and I think this is probably the fundamental issue.
Tower captains who teach ‘badly’ or don’t use the many resources available to think about how to help ringers to continue to progress (or are happy to keep everyone ringing Sunday morning called changes forever) are able to continue and, as volunteers, are unlikely to be pushed to change their ways.
The nature of ringing as a grass roots organisation at a very local level, with everyone a volunteer, means it is unlikely that this will change without two sets of effort - the local effort to address with a specific tower captain and band whether change is needed and the global effort to ensure the resources are there AND that there is support to understand how to make use of the resources, perhaps with more training courses for tower captains and ringing masters.
Ringing can’t realistically dictate a set of standards for how a practice should be run but can try to spread best practice and if the issue is the tower leadership then the next big course to be considered would be how to be an effective tower captain rather than how to ring bob doubles (again) as this should, in theory, have a longer term impact on gradual progression for more ringers.
Currently it can to be hard to find a volunteer willing to lead a tower when one moves away, gets ill, etc and many towers struggle when the previous main organiser is no longer there so if there are towers where the leadership is creating frustration for the ringers then the volunteer needs to come from within the band otherwise it won’t change.
ART has a simple starting point exercise for tower captains:
http://ringingteachers.org/survival-and-recovery-toolbox/tower-captains-guide/tower-captain-type - I have seen other training courses around this same kind of idea so it’s hard to see what else needs to be done at the more global level to try to support change for the towers where ringers are frustrated.
Is it about raising the need for support with the district / branch / association / guild to address the frustrations of the band?
Is it that most of the band are happy to continue as they are, rather than cause upset by looking for change?
Maybe there is an element of ‘growing out of’ one practice where you can now only support and no longer progress and needing to find the next practice in your area which can keep you progressing?