The kid who lost their dad and still came to practice isn’t “handling it well.” They’re handling it. Let them.

Turning up is not evidence that somebody is fine. Often practice is the one place where things still run normally, and the normality is the point rather than a sign the grief has been dealt with. Praising how well they are coping can quietly ask them to keep performing it. The kindest reading is that they are getting through it, in whatever way is working today.

If this is somebody near you, treat them as normally as you can and keep that normal place available. No commentary on how strong they are. And if it is you, you owe nobody an explanation of why you came.