What’s the most accurate way to describe kids’ relationship to “Frozen”? Adoration is insufficient, and obsession is downright weak. It’s more like a cathexis, an acutely intense energy focused on a singular entity. But ask any parent of school-aged children what they think about “Let It Go,” the anthem from the 2013 movie, and you will be met with instantaneous, zombielike paralysis, followed by mumblings of “kajillion times” and a sigh of defeat .

Alas, my grown-up friends, the second Era of Arendelle is upon us. Gird your ears. “Frozen 2” is due in theaters on Friday. So I talked to families around the country and in Britain to see how Elsa, Anna and that song changed their lives. Here are edited excerpts from the very lively conversations.

Elsa Gustafson-He, 6, and her mother, Mona He, of London

Elsa: When I was little, I loved having the same name as Elsa.

Mona He: She’s not named after the movie. It didn’t come out until she was a year and a half.

Elsa: I listened to “Let It Go” at least 91 times.