Business Cards
Even though business cards can be fun design and aesthetically pleasing to hold, are they really necessary anymore? Nobody keeps a rolladex on their desk anymore. It's much easier to Airdrop someone's contact information, or just search them on LinkedIn.
Manual Transmission Cars
It used to be a big deal if you knew how to drive "stick." Today, most car manufacturers don't even make cars with manual transitions because they're just too cumbersome to operate and more likely to have issues if driven improperly. Automatic transmission cars are the new normal.