Euthenasisa. Not exactly voluntary, either, we can talk about suicide another time, though assistence in suicide has allways been legal here in germany, just as long as the Person does the ultimate act himself. That is not what we are talking about.
Medical Assistance in Dying, MAiD as they call it. Teenagers can allready get it in the Netherlands.
Locked up due to fears about him being allegedly suicidal, then pressured into euthenasia https://apnews.com/article/covid-science-health-toronto-7c631558a457188d2bd2b5cfd360a867
People which were pressured to go that way and survived have been coming out, too:
Veterans often offered to do that instead of treating them https://nationalpost.com/news/canada/another-case-of-a-sick-canadian-offered-death-instead-of-treatment-this-time-a-veteran
Then there were the issues of autistic people and people with disabilities issued with DNR orders, children included https://www.autismeye.com/do-not-resuscitate-dnr-scandal/
https://www.dailymail.co.uk/news/article-10346479/GPs-offered-teenage-patients-learning-disabilities-not-resuscitate-orders.html