We ask young people to risk their lives often, it's called 'The Army' (and other groups). Also - this would be less risky than going to space. My instinct say

We ask young people to risk their lives often, it's called 'The Army' (and other groups). Also - this would be less risky than going to space. My instinct says >50% of soldiers between 20-30 would instantly volunteer for this. Probably much higher, like 80%. Especially those unmarried. There would be no lack of fit volunteers. Its ethically problematic obviously, but so is asking grocery store workers to stock shelves as 'essential workers' during a pandemic when they have no PPE. I think probably there's a 100% chance that so-called 'essential workers' who are not medical staff will die from Coronavirus due to the pandemic. The rate of death among the 'very young' is exceedingly low, and I think there were always complications. If we can narrow it to 19-26 year old, super healthy, without complications ... I think the 'possibility of harm' would be quite low. It's not beyond the realm of ethical consideration. Now - remove some ethnical barriers - such as what drug companies used to do by testing drugs in Africa, or what authoritarian governments do all the time (aka China) and you'll have this done in a heartbeat. I think China/CCP wouldn't think twice about trying this on young men in jail. Is my cynical take.