Dr. Don's a member of a growing community that practices Spank Therapy, Age-wise, the men he spanks are well into adulthood, usually.
I will refer you to a previous answer that I wrote that relates to this. “Yes. I was spanked severely and frequently growing up by christian conservative parents.
The findings don't prove that spanking, per se, led to adulthood mental health issues, said Andrew Grogan-Kaylor, one of the researchers.