If freedom of speech is absolute, how come it's not applied for private spaces and for the Internet?

Perjury

Revealing classified information

Threats of violence

Why do most people care so much about what others think? Are they afraid of society norms?

You have freedom to travel. If I loan you my car, I can tell you not to take it out of town, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Freedom of speech does not apply to:

No freedom is absolute.

See a vivid green fireball light up the northeastern US (video) - Space

Fraud

False advertising

And much, much more.

Your Apple CarPlay is getting a big update: 3 useful features coming with iOS 26 - ZDNet

Insider trading

Insurrection

Child pornography

Seattle shop attracts top rock stars seeking vintage guitars - The Seattle Times

That’s what it is. You have no right to use other people’s stuff. If people let you use their stuff, they can tell you how you can use it, and they can tell you to stop using it any time they want.

You have freedom of speech. If I loan you my computer, I can tell you not to use it for certain things, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Terroristic threats

6 Things Women over 50 Should Do Every Night Before Bed, According to Dietitians - AOL.com

Revenge porn

HIPAA violations

Conspiracy

Firefly's Blue Ghost On Moon Seen By Lunar Reconnaissance Orbiter - MSN

If you’re wondering why free speech doesn’t apply to the internet, it’s because you have no right to use other people’s stuff for free.

Trade secrets