person A: My little boy started Kindegarten today and I already feel all alone.
person B: Awww how sweet. is he your only child? It does get easier....
person A: No I have 3_comma_ he is my youngest son.
person B: I felt the same way when my youngest started school. They grow up so fast. 
person A: Yes they do. In a way I'm grateful because it is peaceful.