I'm worry that somewhere out there there are kids hearing adults go "high school has to do [shitty thing] to get you ready for the 'real world', which is even harder!" (LOL no it fucking isn't) or "enjoy it, these are the best days of your life, adult life is so much harder" (what the actual shit are they smoking? Harder stuff than weed, for sure)
I had a relatively good high school experience, and even so, if people saying that stuff had been correct I'd have surely killed myself by now, probably before age 30. There is no possible way I could have tolerated decades more of life as unpleasant as high school, let alone worse. Harsh and short deadlines, general inflexibility of expectations, begging to be allowed to take a piss, the equivalent of multiple hour-long presentation meetings every single day, very-early starts, lots of rooms with shitty lighting and no windows, terrible seating that you're in all day long, complete assholes common and you're just stuck with them, they're not gonna get kicked out (this goes for teachers and students alike), and no realistic ability to leave and find something better.
Luckily, I had a part-time tech job in high school (I did later work a couple very-low-paid non-tech jobs for a while, so I'm not writing this "no really high school is far worse than adult life" perspective from an entirely privileged perspective) and could see that something was wonky about what these people were saying. Then I go to college and it's like a goddamn vacation. On to the "real world" and there are hard times but it's nothing like the 4-year marathon rigid-schedule grind of high school. Those tend to be more like, oh this week is rough, or this month, or perhaps this quarter. And I have so very much more freedom of action to fix things that aren't going well.
Adult life is far easier than high school. High school is insane. Like it's an actually-crazy thing to subject kids to.