Most parents probably dont cease ALL involvement, but imo, grounding you and man handling you is a bit too involved. So is having complete access to your medical file. It is your body, you are a legal adult, it is your choice.
Then again, that is a touchy subject for me. I was diagnosed with leukemia when i was 21, and my parents basically came in and tried to manage my treatment, to the point that nurses and doctors were talking to her about my condition more than they were talking to me. Regardless of her opinion or how much she loved me and wanted to be there for me, *I* was the one going through chemo, not her. *I* was the one puking and pooping on myself, not her. She yelled at me wanting to know if I wanted to die if I sponge bathed instead of taking a shower because I got dizzy and puked every time I showered, if I didnt feel up to going to the store, or getting out, because the doctors said it was important to get exercise. Everything I ate made me puke, but she got mad if I couldnt eat much, as if I was starving myself on purpose.
And also, there were things I wanted and honestly needed to share with my doctors that I felt were private, that I did not necessarily want to share with my mom... such as reproductive health and being sexually active. Or medicine choices.. I opted to use marijuana when I could instead of all the morphine and ativan and compazine they wanted to give me. The doctors knew, but my mom flipped out when she found out - I was such a horrible junkie... even though she saw up close and personal how all the morphine and ativan and compazine effected me.
My tipping point for my parents involvement in my medical care though was when I went into septic shock. I had relapsed, i was having a very hard time with the chemo, and had been discussing a dnr and ceasing treatment with my doctors. But, I had yet to actually sign anything, and went into septic shock while i was neutropenic. My mom consented for me to be put on life support. Supposedly I agreed to it as well, but legally, I was in shock, i couldnt consent to anything. While I am thankful I am alive, that was the most miserable experience I have ever had, on so many levels. I will NEVER willingly go through life support again, and while my parents can always challenge it in court, I appointed a non family member as my medical poa after that.
I mean, I want my mom to be there if I relapse, and help me out. But my medical decisions are MY medical decisions.. its MY life, MY body getting poisoned with chemo, and its MY decision, not her's.