What's so great about “the good old days”?

There’s hardly a week that goes on without my being reminded about the good old days, under the form of power point, video or the like, often coming from French friends generally my age.

Well, if you think of it, what could be so good about these “good old days”?

Inefficient heating systems in our houses and schools, strict education, horrible car safety, no, or incompetent telecom systems, primitive healthcare?

It seems to me that we’ve come an awful long way as we enjoy a much more comfortable lifestyle, with increased safety all around us, plus a much longer life expectancy.

When all is said and done, what is so cool about yesterday? One single and expended asset: Our own youth.