Adults should be able to do whatever the fuck they want with their own bodies as long as it doesnt infringe on anyone elses rights

Kinda as a general idea, I agree that adults should have the freedom to do what they want and that the government should take a more hands off approach towards interventions but, it's not so clear cut as we get to the problem with insane people trying to harm themselves. They really can't consent to self-destructive activities as these inclinations are the result of mental Illness, and there is also some element of social contagion as well which does start to effect other people.

Consider extreme cases, suicide? Do people have the "right" to end their own life? The ability to do so certainly cannot be effectively stopped by anyone, but does that mean they should have the right to do so legally? I think not. And I think interventions in the case of suicide are justified. As it can be said that anyone who wishes to kill themselves is insane and cannot consent to kill themselves, with only a few edge cases where circumstances make the decision justifiable.

Let's consider other manifestations of self harm as well, there are people who will self amputate healthy limbs or gouge out their own eyes or whatever, should they be "allowed to do so"? Should doctors be able to provide elective amputation procedures? Again I think not. Even though we can't effectively stop a person from going crazy and doing it themselves, we shouldn't be encouraging or "allowing" it to happen. After all the adult that thinks there arm is possessed by a demon and then tries to remove it is insane and not capable of making rational decisions, and it's only in edge cases of extreme injury and the like where amputation is a preferable alternative to death and the decision sane.

So let's consider that in light of the trans issue. Someone believes that their "soul" is the opposite gender and therefore needs to remove their sex organs. This is clearly insanity, clearly precludes the individuals ability to consent to such procedures. And it's really only the edge cases of weird intersex conditions where there's a good argument for it.

So should adults merely be given the choice to do whatever they want regardless of the consequences to themselves and society even if such choices don't have an immediate harm towards others? I must admit I find this idea of adult choice to be wholly unbalanced in our society, we say people should have the right to get whatever tattoos or piercings or whatever they want, I "agree" in the sense that we shouldn't have laws preventing that specifically, but on the other side of the coin, say I don't want to see tattoos or piercings or whatever do I have the right to ban such things from my establishments? Legally the answer is likely yes, but socially speaking you'll see many of the same people crying for freedom get angry at the thought that others might decide to treat them differently because of their choices. Then there's the whole argument surrounding drugs and alcohol as well. I find it quite annoying that say, I can't enjoy a drink as a passenger in the car, or in a park or some other public place just because some people cannot act responsibly in such circumstances, yet that's how the law is in many places, I can't choose to allow smoking at my establishments if I wish because apparently bar patrons can't be asked to choose not to come if they don't wish to he exposed to second hand smoke.

This entire idea that adults can choose to do whatever they want isn't really an absolute in our society by any means and it tends to be applied in a very hypocritical manner by most including myself. I want the freedom to do the things I want but I want the freedom to stop other people from having the freedom to do the things they want.