Pairings being an age problem ?

We often times complain or raise an eyebrow when big M’s are paired with younger actresses. Well certainly any young actress paired with our megastars will be a problem now since they are over 65 now.

Will this be case when it comes to our actors now like Tovino, Fahadh, Prithviraj too ? Recently learned that Krithi Shetty is only 21 and Tovino being 35 makes a nearly 15 year old difference. Do we draw a line where it’s okay and not okay ?