Here are the facts.
Pornography affects the mind and behavior of ALL children
Pornography affects ALL children.

Effects on the Mind
In males as young as 14, a correlation was confirmed in several studies between frequent pornography viewing and an accepting stance towards rape.
A 2007 study found that exposure to sexually explicit online content coincides with the belief that women are sex objects.
Several studies confirmed that viewing pornography as a child, pre-teen, or teenager generates shame, guilt, anxiety, confusion, poor social bonds, addictions, sexual anxiety, and feelings of dissatisfaction with one’s body.
A study by the Max Planck Institute in Germany found that the more subjects were exposed to pornography, the smaller the volume of grey matter was in their brain’s reward system, and that high porn consumption was associated with diminished communication between the brain's reward area and the prefrontal cortex, the part of the brain involved in motivation and decision making.
Effects on Behavior
A Swedish study found that 70% of high school boys who were frequent viewers of porn— including that which featured violence and the sexual abuse of children and animals—reported that porn made them want to act on what they had seen.
A UK study found that 10% of 12 to 13-year-olds fear they may have a compulsion to pornography.
According to a 2011 longitudinal study, 10-15 year-olds consuming violent pornography are five times more likely to be sexually aggressive than non-viewers of violent porn.
80 % of teens want to re-enact what they watch in porn, according to a UK study.
In an Australian study of adolescent boys aged 12–15, the more they used sexually explicit internet material, the poorer their school grades were six months later.
The average age of first perpetration of sexual violence is 15-16 and is associated with exposure to pornography, according to a 2017 study from Bloomberg School of Public Health.