Many former child actors don't adjust well to a non-Hollywood adulthood. They feel empty and worthless after the praise and attention is suddenly cut off.
And abuse exacerbates the worthless feeling, once they 'age out' the attention drops precipitously, only the trauma remains as a daily reminder.
“They feel empty and worthless after the praise and attention is suddenly cut off.”
You’re engaging in fact-free speculation. We can say that many young adults without childhood acting careers feel emptiness and worthlessness for a slew of reasons that we cannot fathom.