Lol, the purpose of embarrassment is not to avoid censure by those around you, but rather to avoid doing something shameful or disgraceful (whether alone or in company).
EDIT: So that I have said something in this thread other than short and flippant remarks:
The real problem I have with “And now maybe you're just a tiny bit scared sliding down?” or any other such nonsense, if we put aside the fact that it's so embarrassing I just winced myself in two—the main problem is that it is totally bewildering to the target audience. I know this, because when I was of such an age, I was saddled with caretakers for a time who thought in the same way as this poor fellow here. My four-year-old self is thinking, “Fuck you, I just fuckin climbed up this slide and you can’t stop me, I am fucking fearless—but a little hurt that you didn't think it was as cool as I did.” This is literally my four-year-old interior dialogue. I find it hard to imagine that I'm the only one.
In my (albeit limited and anecdotal experience), the little ones do not respond well to such fawning and whipperdogged pop-psychology-inspired beginner's folly emotional claptrap---it either insults them, confuses them, or dismays them. And it certainly does not instill confidence in the creature that you believe they can slide down successfully—and it is indeed reassurance that they were after, make no mistake.
Context. Context. Of course you don't say it to 4yr old who does that thing 20 times a day. You say it to 1.5yr who did it the first or second time, and actually is hesitant.
Somehow I get the impression that you are deliberately trying to interpret everything in the poorest possible light, without any sense of context. Please stop that.
EDIT: So that I have said something in this thread other than short and flippant remarks:
The real problem I have with “And now maybe you're just a tiny bit scared sliding down?” or any other such nonsense, if we put aside the fact that it's so embarrassing I just winced myself in two—the main problem is that it is totally bewildering to the target audience. I know this, because when I was of such an age, I was saddled with caretakers for a time who thought in the same way as this poor fellow here. My four-year-old self is thinking, “Fuck you, I just fuckin climbed up this slide and you can’t stop me, I am fucking fearless—but a little hurt that you didn't think it was as cool as I did.” This is literally my four-year-old interior dialogue. I find it hard to imagine that I'm the only one.
In my (albeit limited and anecdotal experience), the little ones do not respond well to such fawning and whipperdogged pop-psychology-inspired beginner's folly emotional claptrap---it either insults them, confuses them, or dismays them. And it certainly does not instill confidence in the creature that you believe they can slide down successfully—and it is indeed reassurance that they were after, make no mistake.