They do generalize with the "there is no typical old person" to cover the bases.
The QoL issues are an often overlooked aspect when people cling to following the government script and retiring at their sanctioned retirement age.
I still stand by my thinking that its far better to earn, save in Bitcoin, live beneath ones means, and "retire" as early as possible to then do the hobbies and passions one wants to. Id rather live cash poor and free, than be exhausted, achy, irritable with mugh more dollars .