As a parent I've come up with a mechanism to help when things like this worry me.
I have basically no power to protect against things like this. But I have tremendous power to protect against far more likely causes of harm like diabetes and heart disease and obesity.
So any time I'm having a moment of worry about their well being I find an extra hour to carve out of my day and take them to the park. It's therapeutic and makes me feel less helpless and feels like I'm gradually equipping them with the life trait of being an active person.
Rising early is something I find very rewarding. FWIW it is now 0508 local time as I'm finishing this post.
It used to be that I'd wake up at the last possible moment (to get as much sleep as possible) and stay up at night as far as possible (to get something done or be social). At some point I finally realized that I am no night owl, so I tried looking into if I could rather rise earlier.