Restrictions on Daughter/Girls

I was out with a friend, she was telling me how her parents have messed up her life and try to interfere in all aspects of her life. Her bachelors was in her home city, so anytime she wanted to go out other than college hours, there was proper question answer rounds. Where, who, when, what time you will return home and her father used to pick and drop her. To avoid conflict she restricted going out. After bachelors they didn't allow her to pursue masters out of India. Then when she convinced them to allow an MBA in another state, there were constant calls and video calls just to make sure she was in her room. But that stay away from home developed her a lot, I can see that. She is more mature now and confident. Now she lives in a metro city, is financially independent but still has to update any plans to her parents otherwise they make sure to make a ton of calls to her and her roommate. She can't be outside home after 9 9:30. She has a vc from home around that time. Infact she got a call when we were out. I understand parents want to protect her but at what cost. I asked her to set some boundaries and to push back, but she answered its no use and would only lead to more restrictions. My point is first, is it so hard to push back parents who are so controlling and ask for some space, second now that she is financially independent, there wouldn't be any consequences right, worse comes to worse a break of communication