I mean this in all seriousness: Between this and the "bronies" thing, can someone explain to me when being a hip, cool guy or whatever you'd call it became all about liking things that 5-8 year olds like, despite being an adult man in your 20s (later? earlier?)? I absolutely don't get it. I don't even get it enough to judge it. It's just incomprehensible.
Being interested in childish things has always been the honest purview of the nerd, the accidental oddball, and the geek.
However, with the advent of "Indie" crowds, it became cool to awkwardly dredge up even the most childish nostalgia in the name of "spontaneity" or romance; perhaps in an attempt to re-create some of the emotional pleasures of childhood to compensate for the drifting malaise of their adult lives (or just to impress chicks who feed off of that stuff).
When the latest wave of 21st century hipsterdom emerged, it swallowed up the Indie crowd and with it, the awkward dredging was assimilated.