Modern Macs do not always have en0 as the WiFi adapter (it's en1 on current iMacs and on the Mac Studio; en0 is the ethernet jack).

But you're unlikely to be taking one of the machines that has built-in ethernet to the airport or coffeeshop.

Duh, also true on my Mac Mini. But yeah, “modern Mac laptops” probably makes the statement correct enough and still describes the entire set of targets.