I think in this day and age they are starving for and deprived of authenticity, that simpler, more analog times see so romantic. Also maybe a collective version of "Rosy Retrospection" happening ...

And in fashion, we've always been reviving past decades. Trends used to come back every 30 years as a rule of thumb and I read somewhere that now it's closer to every 15! The cyclical nature of fashion is unsurprisingly getting faster and faster. I find this interesting 😁