best practice we follow is....focus on being a good husband/wife first, in-laws and other people/society are secondary. there is no point making in-laws/society happy if husband and wife aren't happy.....cause in the end....it's just gonna be you two.

but yes, he should tell his fam.
In my eyes.....If he can't stand up proudly about the biggest decision of his life, then he was not ready to get married.