Why do you have such a problem with parents helping their adult children @jennymanara ? 
Sounds like you're projecting a lot of your own issues onto others.
It's none of your business what people do for their adult children. I have always helped mine with moving in AND out of uni accommodation, (and also their homes when they moved in with partners.) DH helped too. We love helping them, and they help us when we need help. With ANYthing. That's what family does. (as @jaqueshammer said.)
I feel sad for you that you feel the way you do. Must be quite hard to be so negative and sour. Your comments like 'you are infantilizing your offspring' and 'your precious baby is an adult, whether you like it or not' are very spiteful and mean. And I must have missed the memo where we were all told that adults should not ever help other adults in life!!! 
You sound bitter, and a bit angry that others like to help their offspring? Why is that? As I said, it sounds like you are projecting your issues. I think you need to look into WHY you are so bitter, and annoyed by people who like to help their own offspring - even as adults.
I agree with a pp that you have a chip on your shoulder.
Parents helping their offspring (even when they are adults,) is NOT unusual. Maybe in YOUR world, but not for many other people. As I said, I feel sorry for you, that you are so sour and bitter.