I know plenty of those in the 80+ demographic who run their finances this way
80+ represent about 15% of pensioners, at most.
And it's not as though people aged 70 will, when they turn 80, suddenly switch to their parents' payment methods. The number of people that keep cash in envelopes is shrinking every year. This was all thrashed out when pensions were switched to being paid into bank accounts some years ago.
If you want policy to be effective it needs to be delivered in a way that will be easier for the user to benefit.
Indeed. Which is not the case for the way it's currently delivered.
Also I would question the assumption that all pensioners are on a monthly payment plan.
If they aren't, they should be.