Q:Here's a question and a few possible answers:   Q: He seemed to be putting too much stock in the date, even though it wasn't shaggy he went to what? Possible A: wait for, dress nice, go for haircut, bathe, shave  Why is "go for haircut" an answer aligned with human common sense?
A:
people want to look their best when they go on a date so they will get their hair cut.