person A: My niece will soon turn 20 and as she was discussing her birthday plans all I could think of was a time when she was small
person B: aww_comma_ it's amazing how fast time flies and how quickly kids grow up.
person A: I know right. Seems just like yesterday she was a baby.
person B: I think like that with my kids. This sounds cliche but it's so bittersweet. 