I was born in 1988. When I asked which era people would like to experience, I chose the 1930s. Now I want the more interesting part of the answer: what draws you to your choice?
That is a conversation starter, not a claim that an entire decade was better. The years we imagine from a distance can become a collection of selected pictures. Being curious about an era is different from wanting everything that came with it.
Instead of stopping at a year, name the detail that draws you in. Is it a style of music, the way people dressed, a kind of architecture or an imagined pace of life? Those are questions for the reader; the short caption does not explain my reasons.
Being specific makes the conversation more interesting. Two people can choose the same decade while wanting completely different experiences. One might want to hear a musician live; another might want to see a city before it changed.
You do not need a different birth year to explore an interest. Listen to a recording, look at a photograph carefully, visit an exhibition or read a well-sourced account. Keep the distinction between what you imagine and what you can establish.
Then ask what that interest says about today. Would you like more time for music? More curiosity about your city? More conversations that go beyond the daily routine?
Choose a decade, then add one sentence explaining why. That second sentence is the part I would most like to hear. It turns a quick social-media question into a glimpse of what matters to you.