This article 'My Partner Is Ready To Get Married And I'm Not—What Do I Do?' starts with this:
If you’ve ever watched a romantic comedy, you know the drill. Boy and girl meet, fall in love, and all seems like it will be happily ever after. Then, there’s the twist: She wants to get married and he, the man-child he is, wants to live a bachelor life without a ring tying him down.
Why is it there's no article in front of boy and/or girl?
A boy and girl meet...
A boy and a girl meet...
Shouldn't it be either of the above?