system
sentimental: I was looking at old photographs of my son yesterday, and almost started crying. I still remember those days, and started looking at all of his old baby clothes
human
I always hate thinking that my son is getting old. Just like a few days ago, I was looking at some of my sons old clothes, and it made me very sentimental. I never want him to get old on me. 
gpt
I believe you are really sad although it's a fact of life
human
Yes. You get to see them change and grow. It makes it all worth it. 
gpt
True, and the good thing is that when the kids grow, they provide moral support to parents.