person A: I just celebrated my sons 14th birthday and can't believe he's growing up so fast. How is a man in my house all of a sudden?
person B: That is crazy! That must seem to fly by.
person A: It is crazy and so weird when you have kids that are little and then everything changes so quickly.  I remember how he used to fit into a tiny sleeper!
person B: Yeah that must be very strange. I do not have any children_comma_ but I can imagine how crazy that is to watch them grow up!