So what do you do with the kids? You can't just shove those things in lockers anymore; this is 2018. To fix this problem, some theaters are totally going out of their way to make moviegoing a more family friendly experience. For instance, Cinepolis in Southern California has a playground for the kids, complete with a 55 foot long, 25 foot high structure with slides and climbers and the kinds of brightly colored crap that really amuse children, all right there in the theater. But before you spit your LaCroix in a panic, know that it's meant to tire the kids out before a movie starts -- you can't use it during the movie. So in an ideal world, that kid who nearly shit his pants during Evil Dead would've been too exhausted to do any pants-shitting during the actual movie.
Other theaters offer up bean bags to stop your kids from fidgeting so damn much, and if all goes well, maybe they'll just pass right out. If your kids are smaller, there's something called Stars and Strollers for when you don't have a sitter, or if you just really like the idea of hanging out with a bunch of other parents and babies at the latest Tarantino family friendly funfest. The theater has lowered volume to be less abrasive to the tiny human you created, and dim lighting so you can still see where your kid is and not be dropping peanut M&M's on their head for two hours.
And hell, if that's not good enough, some theaters literally have babysitting available, so you can finally go see Pitch Perfect 4: Pitches Be Crazy without having your child point out all of the redundant screenwriting tropes of the Pitch Perfect series.