It’s a very, very common mistake, especially with the “teen” fighters. The fact that movies and TV often get it wrong by inserting a model of one aircraft and claiming it’s another doesn’t help.
The phrase “you can tell that’s not an F-18 because it’s shaped exactly like an F-16” has been said more than once at my house.
Not to take away from your story, but the USN flies F18s and F35s, the F16s are all USAF.
It’s a very, very common mistake, especially with the “teen” fighters. The fact that movies and TV often get it wrong by inserting a model of one aircraft and claiming it’s another doesn’t help.
The phrase “you can tell that’s not an F-18 because it’s shaped exactly like an F-16” has been said more than once at my house.