HAS AMERICA lost its marbles? (Shutterstock).

America’s kids have lost their marbles.

Also their kites and yo-yos.

We have now stepped into spring officially, which – in the golden past of the Golden State – would signal kids to hustle on down to the Alpha Beta or Thriftimart and buy yourself a high-flying (sometimes) paper-and-balsa wood kite and get “high” in a totally wholesome way.

Nowadays the young folk are sequestered inside, hunched over their PCs or iPads, focusing on Pokemon, Minecraft and Roblox. Gorgeous weather is beckoning and they’re carving a divot into a computer chair or couch cushion.

As Marcia used to say, scandalous.

Baby boomer games – back in the day – had seasons. Kites were for spring following marbles and yo-yos. The onset of the season was signaled by the ads on kid-oriented local TV shows like “Jolly Roger” and ‘Skipper Frank.”

There was a certain hardening of the heart involved in our games. Marbles contested frequently were played “for keeps,” which meant that if defeated, you forfeited all of yours, even your favorite “cat’s eyes.”

Kite-flying could be painful as well. As was long-chronicled in “Peanuts,” Charlie Brown’s attempts at park aviation were frequently foiled by the devilish and heart-breaking kite-eating tree.

And yo-yo’s … which of you baby boomers hasn’t been hit painfully in the shin by a runaway “Butterfly” or the questionably-titled “Reflex Auto Return” model?

A while back a report from the Pentagon indicated that only 23 percent of male youth were considered capable of military service, with the biggest chunk DQd for being overweight.

Not surprised. Nothing prepares you for crouching in a foxhole with your M-4 like wearing out your knees on asphalt trying to save your last aggie or puree.