I think one important point is always overlooked in this debate.
And that is that buggy pushers didn't choose to roll on, roll off. They didn't choose to be in competition with wheelchairs for spaces.
This was the bus companies idea. They removed the buggy compartment and created roll on, roll off to speed up the process.
I would happily fold like my mum did years ago - but there isn't the space to put the buggy like there used to be.
Also roll on, roll off means you are not ready to collapse like you used to be. I remember my older sister used to get all her shopping bags off, take the baby out and collapse the buggy before the bus even arrived.
It's not the buggy's owners fault. its the bus companies.
The buses I get are so packed that I stand all the way most days. There is no way I could hold the buggy, baby and changing bag (let alone any shopping) safely.
And the luggage space is at chest height so a big lift (and a lot of strength) is needed to get the buggy up there in the first place - and the space is so small there normally isn't enough room - and you risk squashing other people's shopping.
They need to bring back those tall, narrow slots that you just propped your buggy up inside.
Then more people would fold.