Honestly…I don’t.

Like I love my parents but we’re not really into any of the same stuff. (Well technically all of us went to engineering school, but they’re not really interested in engineering/math/physics for its own sake like I am.)

But also that’s fine with me because I know they’re there for me.

So I think that if you really share zero interests with your son, it’s fine if you acknowledge his interests and remind him that you’ll be there for him and that you love him.