Not everyone’s rov agrees with another. Not everyone’s rov believes that a father touching, hugging, or kissing his son or daughter out of parental love, in an appropriate way, is assur. Those who do feel that way, should not touch their female immediate family members, and should refrain from commenting negatively about those who do not share their opinion.
Part of what is SO wrong and alienating within Klal Yisroel today, is that dark and unyielding attitude held by people who are practicing a brand of frumkeit that removes joy from the Torah. By putting one geder after another on halachos that were perfectly excellent when Hashem gave them to us, they in effect are saying the Torah needs to be “improved.” Well, improve away. I wish my father Z”L were still alive so I could kiss him again. And I know my brothers feel the same about our mother O”H.