So being so wise as you self declare- you should show easily from Scripture where volunteering a child for a trial is evil.
volunteering children for the Polio vaccine was as much an unknown as it is for Covid shots. Remember as of right now close to 12,000,000,000 covid shots shots have been administered worldwide. suspected deaths and proven deaths from the shot stands at approx. 1,000,000. so based on these statistics your chances of dying from a covid shot are: 0000833333333333% or you have a 99.9999266% of living for every covid shot administered!!! those are facts. The polio vaccine when it was going through human trials was not as safe!
Give it a couple of years and then we will see how the Covid vaccine is working out.