Mr Rogers' Omegaverse Song
I could totally see Mr. Rogers trying to delicately explain the facts of A/B/O life to little kids. He'd probably do it with a little song:
Everyone is special
Every family is swell
Omegas have lots of babies
Some Alphas do as well
And if you are a beta
You can be mom or dad
to a little family of your own
And everyone is glad
(Context: Gift, Treat, Default, a Yuletide-specific variation on Fuck, Marry, Kill in which one of the options the above-quoted nonny was addressing was Mr. Rogers/Mr. McFeeley A/B/O for the children's show Mr. Rogers' Neighborhood.)