Please. A pandemic is ongoing, right? That means a lot of people are getting, spreading, and coming into contact with the virus. The idea that one's infection could be attributed to a single individual is ridiculously unscientific.

This argument is, in fact, so poor that it doesn't even stand muster when we accept your blindingly outrageous premise. Supposing a kid could be blamed for their 90 year old grandpa's illness, do you think grandpa is going to go down screaming, blaming the kid and cursing him for wanting to learn how to read, write, and do multiplication?

Grandpa would probably die to ensure their grandchild has a decent shot at a good life. I know mine would have.