Did you know that every dad, and this is a scientific fact, wears glasses?
I’ve done studies (no I have not) and have verified this. Feel free to add that to the Wikipedia page for “father” which is actually surprisingly sparse.
And while I could possibly be wrong about that glasses thing, below you will find several kinds of glasses that might not be worn by every dad, but are definitely only worn by dads.
Note: I have no idea what any of these types of glasses are “called” so I’ll just be making up fancy names for them.