Ringing Lite? This is an interesting discussion, comparisons with cycling and running have some similarities, but the learning processes require far less "effort" .. you can learn to ride a bike in your back garden, have a couple of goes, fall off and go back tomorrow, leave your front door, you can go for a run, these are outside any organised training that you may wish to attend ( aka a Parkrun ), the latter will give you confirmation on your progress with a time and support from lots of others ( Parkrun are very good at this ) , however with ringing, your first port of call is not "put a dumbell in your loft" so you can go and have a go and then leave it until tomorrow if you get bored or frustrated ( the Bike scenario ) for Tower Bells you have to a) find a teacher, b) arrange a suitable time c) go to a tower and these three things to me make it very difficult to compare the activities, you are so dependant on other people to help you, the same with Handbells, they are not the sort of thing the average interested person is going to buy to find out if they like it, financially its not a second hand bike or a pair of trainers.
I personally have no real interest in Handbells and I think they are a different skill, I struggle to see a relationship beyond the methods or changes between the two, i did manage plain hunt minor on handbells on the Mobel app one afternoon, but give me a real set and I would be hopeless I am sure - but is that because I don't have the interest in it ? .. I suspect so.
Mini Rings may create interest, but they are not like ringing in a Tower, I would like to see a study on the transfer of a learner from learning to ring on a mini ring and their subsequent transfer to a normal tower, the same as one on those who learnt to "ring" during lockdown on RR and what happens when they go and try converting the push of a button to a rope ( there are some comments above on this )
You have to create interest in youngsters and give their parents something as well to get any slight commitment from the pair, if we are looking to recruit youngsters then a "Learn to ring" week in the holidays where you basically take charge of their kids ( AKA Childcare ) may spark the interest of the parents and it's then down to the teachers to spark the interest of the kids, and you can get paid for this (shock horror!) , "Childcare" can be £60/day+ so expenses are covered and you can provide a good environment for their time and the teachers can get some compensation as well.
If its adults we want to get, then give them a reason to learn and provide opportunity, make it a family affair so they get to do something different as a family - they then encourage one another and even though you may only get long term take up from the few, a seed is sown.
"Lite" is never going to be achieved with lumps of metal that you weigh in Cwt !