The blogger is very judgmental. Also, he thinks there is a set pattern for acceptable social behaviors as one ages. If a person deviates from this, they are faulty, they have a “syndrome”.
In my opinion, the right questions to ask are, “Is a person’s behavioral dysfunctional or destructive?” If the answer is “no”, then the next question is “Does the person’s behaviors make them happy?” If the answer is “yes”, then stop, and MYOB.
Does the blogger need to be reminded that poor behavioral choices are certainly not restricted to the over-40 group?