Tolerance usually comes with education. You can’t be tolerant if your parents are so vehemently against this proposal because your parents are teaching you not to be tolerant. These children may grow up having a negative view of certain people in society based purely on their sexuality. This can lead to hate crimes being committed and at the very least, bullying in school. Your shortsighted and biased opinion is the reason many children face mental health issues, anxiety, self harm, bullying, hate crime and suicide.