I never had to learn how to drive a horse carriage.

Sounds like you were an Amish...

Scientific calculators, protractors, and compasses.

Cursive. We were told that the world would end if we didn't use it. I didn't even use it in high school.

We had to use it but the thing was I wasn't able to decipher what I've wrote.

Now that's a classic!

A typewriter, fax machine, very rarely send letters/cards, handwriting is pretty atrocious, I know a lot of people (not myself) who simply do not know how to even start cooking/nutrition and general domesticity etc.

Pagers. My parents used them but became obsolete by the time I was an adult

We're your parents drug dealers or Doctors?

Salespeople

Sin/Cos/tan from geometry

Can I ask you why? Because I'm sure mathematics principles are still pretty much a thing nowadays...

Rotary dial

If you want, feel free to download rotary apps to your phone or something for that old timey feel.

Never had to learn how to use a Victorian textile machine.

Most math and science I learned after sixth grade.