As for S2 - what planet are you living on, might I ask? One where CoVID doesn’t exist? (Ok maybe you’re in New Zealand, in which case this doesn’t apply). But anywhere else, taking a 2 year old with a “cold” to hang out with a bunch of people sounds like the possible beginning of a superspreader event.
Somewhere in Australia. Conditions are not quite as good as NZ, but our restrictions have been relaxed recently to allow gatherings of ten people. X is too entitled and selfish to err on the side of caution, and unfortunately I can’t dictate or even discuss what he does with S2 on his time. He knew S2 was unwell (not enough so to stay home with me) and still made that choice.