>>105343637Fucking mentally ill individuals is still largely a grey area in law, and decided on a case-by-case basis.
Usually it comes down to making sure the individual isn't being exploited, for some vague definition of "exploitation" (e.g. see Kortner v. Martise, where a guy had an S&M relationship with a retard and the retard's mum sued). Others claim that consigning a human to a sexless life violates their rights and/or is cruel, although this argument falls apart when you try to apply that logic to children with terminal diseases.