I've had a lot of experience in and around this looking after both my grandparents. Would be great to learn more about your experience and what you've got planned - would you be interested in a chat?
"However, if there a few meek drivers while the majority follow the prudent or optimistic strategy, then the meek strategy is not bad because meek drivers will park
a distance λ from the target."
I am a 'meek' driver for this very reason. My assumption is that the majority of other drivers are either 'optimistic' or 'prudent,' and as such the parking cost of the meek strategy is much lower. Would be very interesting to test this in the real world!
I'm a huge fan of Alistair Cockburn's thinking on this point. He argues that people - and their characteristics - are a far greater driver of project success than methodology.
The argument is not a formal one, but I think still holds a lot of weight: