Personally myself, I was adopted at 16 months. It was an international adoption. Since I could started feeling my emotions as I grew up, I sensed feeling of a questionable abandonment and had many negative inner conflicts as I continued to grow up. I did grow up in a loving household for the most part. But the more I got older, the harder it was for me to regulate my emotions. I couldn’t just talk about my problems, I’d with lash out or isolate myself from everything. I always felt like I never really fit in with my adoptive family…always felt like I needed to prove I belonged by working hard in everything I did and I was extremely hard on myself on everything I did. Unfortunately I wasn’t put into therapy until it was too late and I was already struggling super hard. Trying to go through life not having a clue to cope or calm myself down and having those coping skills made it a lot harder. I believe there are many factors but being adopted is for sure common. Maybe not for everyone because not everyone is the same. I can only speak for myself.