.in some countries they forbid parents/specifoc people from donating to a specfic person. For example, in Canada, a woman got tons of unvaxxed volunteers for her kid. The state denied them and said that if she didnt authorize the injection from National blood bank services then they would take her kid away and do it anyway. The kid later died from vaxxed blood.
Many such cases.
Make sure the people close to you also know. My so and I are not married and will never be but he knows my feelings well. My mom also knows. When I had surgery, my mom was there and I made sure she knew they were not allowed to starve me to death nor donate my bits.
A lot of states set you as a donor unless you specifically opt out when you get a license.