Just call his grandmother if you're so worried or even Collin
That's a wee bit invasive, and if you're snarking she might miss that hint.
...that and do we want her being more comfortable with calling people every time she's worried about them?I'm not, if I'm genuinely worried about someone I'm okay with being invasive and calling
Figure personal thresholds for worry though, some people get to the upper tiers of it quickly and often.