17 people reveal something they don't understand but it's too late to ask about.

Real talk: How do bridges work, why is the sky blue, and what exactly is going on with the moon?

Sometimes all it takes is for a curious kid to ask you a question about the ocean to realize that even though you're an adult, you really don't understand how dolphins communicate. So, when a Reddit user asked, 'What is something you don't understand but feels like it's too late to ask?' people were ready to reveal the things about life that they find to be shamefully baffling.

1.

After all these years still cant understand how Bitcoin works for the life of me - ben123111

2.

How do I shave between my butt cheeks? - uplock_

3.

The names of my coworkers and regulars at work. - PM_ME_YOUR__THIGHS

4.

Makeup. I'm a 40 year old women who really never learned how to apply makeup beyond eyeshadow and mascara and now I feel ridiculous asking someone to teach me. - learningprof24

5.

Still don't know how to switch the button at the gas station, when you fuel your car. Like it's too late to ask, so I'm always standing there fueling manually. - [deleted]

6.

How to read a regular clock. I’m 27 years old and I never learned it. - Mjb06

7.

Who the hell the Kardashians are, and where did they come from/why are they famous at all? Literally one day I know nothing of them, next day they’re everywhere. I still don’t know much about them beyond that one’s butt being in a lot of pics. It’s bewildering to me. I know I don’t watch a lot of news or read a ton of magazines, but sheesh. - WreakingHavoc640

8.

How all my family members are related. I grew up in this family, so there was never a time someone sat me down and said “Ok, Jim is bobby’s dad, who is your uncle’s cousin’s son....” etc. It’s just assumed you know. - [deleted]

9.

How to dirty text. I can't tell where the appropriate line is between 'hot naughty things' and 'that's disgusting'. - MediocreClient

10.

Physics. I passed physics 101 by the skin of my teeth. Literally by 2 points. I still don't understand how I managed to pass that class. I assume the math gods finally took pity on me - Quicksilva94

11.

I just got an A in calculus 3 and I don’t know how to long divide on paper - DrBarb69

12.

So, eh, how do I make friends if I'm not in school anymore? Do I just barge into an existing group (say...in a local whatever-sports-club) and ignore the awkward feeling of being an intruder long enough that I somehow belong too? - AeonLibertas

13.

Do I actually have to do separate loads of laundry for hot and cold wash, or can I just keep washing everything on cold? - writerforreal

14.

I'm interning with a judge, let's call him Bob Roberts. I got the position through his son, and have been doing this for two months. The catch: in the last two months I have never called him by his name. I don't understand which term would be acceptable. Bob, because he's my friend's dad? Mr. Roberts, because he's an adult and I'm a teenager? Judge Roberts, because he's a judge?

I compromised with myself by never saying his name, which is also kinda awkward. And because I was afraid to clarify at the start, I've been stuck in this quagmire for the whole summer. Help. - etymologynerd

15.

The 'loop, swoop and pull' method of tying shoes. Been using bunny years since I can remember and even tried learning the other way once. At this point I don't even care. - KrakenWarg

16.

Every Monday morning for the last 6 months a guy I work with walks up to me and says, “Monday”, with the tone you would use to say, “Morning”, as a greeting. I think it’s a movie quote, because he always laughs like it’s a joke. I’ve smiled and laughed along this entire time and now it’s too late to ask him what he’s referencing. I do my best to hide from him every Monday now. I’d love any insight. - Walter4568