Basically anywhere you need to scan a QR code to get in, you can have a pass in Apple Wallet. I’ve never stored payment info in Apple Wallet. But every time I take a flight, I store my boarding pass in Apple Wallet. It’s than printing a physical boarding pass, it automatically updates metadata (e.g., flight times, gates), and it’s nicer than just a picture.

Previously, you could only add passes if the company supported it. So most airlines have Apple Wallet passes, but most gyms don’t. This update will allow you to create your own passes. Basically just storing the QR codes (and maybe some metadata?) in one easy-to-use place on your phone. I can imagine this being convenient for daily use so you don’t have to track a gym tag with a QR code and a library tag with a QR code, etc. Also nice for tickets to events.

I basically only fly one airline. But I generally try to store train passes, airline tickets, show tickets, etc. in the wallet when I can especially if I can't easily print a backup print copy--which is often an effort if I'm traveling.