Television, videotape, Blockbuster, home theaters, on-demand, Netflix. The cineplex has been under siege from modern upstarts for decades. But it’s impossible to imagine a world without the big screen, if only because going to the movies has always been as much about the ritual of “going to” as it is about “the movies.”

“Going to the movies.” It’s a universal phrase that is somehow distinctly American, shorthand for all manner of personal and social significance.

“Going to the movies” is a Proustian madeleine, a series of pencil marks on a doorjamb, a solution to crises ranging from heartbreak to parental exhaustion, a way of being separate but together, present yet adrift.

It’s also something people don’t do as often as they once did. The new technology and quality of television especially has turned viewers into homebodies, never far from their laptops and flat screens. In the shadow of declining box office, theater owners try everything, upgrading their seating, concessions and prices. Studios, on the other hand, double down on what have always been high-stakes gambles: blockbuster sequels, prequels and reboots.

And everyone wonders why, exactly, the film industry didn’t see the dangers of the megaplex explosion in the go-go ’90s. Some of those faux Spanish monstrosities may indeed wind up repurposed as low-cost housing or virtual-reality emporiums. But going to the movies? That remains a vital human experience. There ain’t no home screen high enough, ain’t no smartphone wide enough, no noise-canceling headphones deep enough to ever replace the full body and mind immersion of going to the movies.

“Going to the movies” is a personal and cultural throughline, an ever-shifting ritual by which we mark our own changing lives.

Most people can name the first movie they remember; mine was “Snow White,” and, of course, I was terrified by the Evil Queen (who wasn’t?). But I also remember, vividly, the slant of the aisle as we walked to our seats, the red velvet curtains parting to reveal the screen, the large and expectant dark that hung from the ceiling in the moments before the film started rolling.

It was an early glimpse into the world of adults, a public activity that neither excluded nor segregated children. No matter what your age, the experience is the same; we all eat candy at the movies.

Going to the movies, we scatter a lifetime’s worth of milestones. There was one theater in my hometown, and it did not always show first-run movies. The next closest choices were at least 40 minutes away. My parents took us only when they thought it was worth the drive, a celebration or, eventually, an acknowledgment that my brother and I were now old enough to appreciate grown-up stories.

Going to the movies was and remains a centerpiece of our emerging social and independent lives. The movie theater was the first nonschool-associated public place my parents let me go to by myself, with money.

Going to the movies bookends virtually every romantic relationship; it remains the universal first “real date” experience, and when the heartbreak comes, well, as one of my girlfriends told my sobbing 20-year-old self: “You’ll get through it, just go to the movies. A lot.”

For parents, going to the movies provides a new form of freedom: It’s date night away from the kids, or a family outing that, mercifully, requires that everyone sit down and stay quiet. For almost two hours.

When my son was very young, he had two speeds: nonstop and asleep. Except when we took him to the movies. There he would sit, rapt, with no fidgets, complaints or demands (except when he managed to spill all his popcorn, which was often). His sister was the same. (And when that popcorn spilled, by God, I just bought more.)

For several years I was the official movie mom, happy to load a bunch of kids into the van, ration popcorn and candy, make sure everyone went to the bathroom before the film started. It was certainly the most relaxing form of play date and invariably led to lively conversations on the way home.

Through my children I saw the timeline of “going to the movies” play out even more clearly. The theater was the perfect space to experiment with their freedom. When were they ready to visit the restroom solo? See PG-13 films? Be dropped off at the theater? Drive themselves? To a midnight show?

My son is now in college, his sister an (almost) senior in high school, so they go to the movies on their own; they even occasionally take their 10-year-old sister along.

Technically, it is easier to gather the family around the big screen. But in our house that rarely happens. We still go to the movies together, though. It’s still exciting, the rush to get everyone in the car, our collective entrance into popcorn-scented splendor, the passing down of drinks and candy and the moment of theatrical twilight when the descending dark meets the rising glow of the screen.

I take my husband’s hand and send a maternal side-eye down the row, but no one is rustling or whispering or bickering.

And nowadays, even popcorn spills are rare.

mary.mcnamara@latimes.com