Kids are more receptive to changes

I felt that children are more receptive to changes than we adults do. It was my third day coming back to work after off for about one year. The first day when I let her daddy brought her to grandma's house, she did cried and don't want me to go out. The 2nd day when I wake her up in the early morning, she refuse to wake up but wasn't really cried anymore. Today, when i reached grandma's house, she happily wave goodbye with me. She don't even asked where mommy is the whole day. So i guess she is faster and better in accepting the changes that happened to her compare to me. I felt a bit sad that she don't even missed me anymore :-)