Perhaps you were given some medication that is later proven harmful. Maybe there’s a sign in your blood test results that in future will strongly correlate with a condition that emerges in your 50s. Maybe a study will show that having no appendix correlates with later issues.
How confident are you that the data will never be used against you by future insurance, work screening, dating apps, immigration processes, etc
It seems like an easy fix with legislation, at least outside the US, though. Mandatory insurance for all with reasonable banded rates, and maximum profit margins for insurers?
Your comment is extraordinarily naive.
1. Is transexual but does not tell anybody they are and it is also not blatantly obvious
2. Writes down in a health record they are transexual (instead of whatever sex they are now)
3. Someone doxxes they/them medical records
4. Because of 3, and only because of 3, people find out that said person is transexual
5. And then ... the government decides to persecute they/them
Let's be real, you're really stretching it here. You're talking about a 0.1% of a 0.1% of a 0.1% of a 0.1% of a 0.1% situation here.