Before my kid is born, I am worried about whether he will have genetic faults. The worry is real so both of us went to do some checkup to see if we have any hereditary illness that might be passed down to the next generation.

Then when he is born, I'm worried about whether his hearing is alright. He initially failed the test, but was okay after a second try the following day. When he is still crawling, I worry about whether he can walk. When he starts walking, I worry about when he will start talking.

Basically the worry is always there, just that the thing I worry about changes. That itself is a good thing because the nature of my worry evolves as we grow and mature. It'll be a problem if we keep worrying about the same thing over and over again, because that will mean that ......