Should I correct the grammar?

[mckenzie]

DS has written an interesting, detailed match report for his team's match on Sunday.
Unfortunately there are grammatical errors and a few spelling mistakes. I have already praised him for the content, as others have also done on the team's Facebook page.
Should I privately and kindly point out said errors for a 'learn for next time' example or let it go?

DS is a young year 10.

TIA

ask him if he could make improvements to it.

drop in the spellings at a later date.