Why is it called "Alien Mom's Handbook"?

One day after showering, my two children pointed at me and laughed uncontrollably. It turned out they thought I looked like an alien because I had pulled my pants up so high. Later, my son even drew a cartoon of my "look" and used it as the group's profile picture. If this had happened in the past, even if they had the thought, they wouldn't have told me; at most, they would have just whispered to each other.
Indeed, I've changed a lot in recent years! Since I no longer have to be the "bad cop" at home, my relationship with my children has improved! What exactly did I do when I used to be strict and disciplined in life? Am I an alien, or an alien's mom? Pay attention to my Alien Mom's Handbook, and all will be clear!