You don't have to be an expert to know the difference between right and wrong and what a child is. Trying to smear others to deflect from your own conduct does not work.
thaiguider.com:
it is generally considered that any person who is over the age of 15 (but not yet reached the age of 18) is referred to as a minor in Thailand (3). For the legal definition of a ‘child’ in Thailand, according to Child Protection Act 2003, Section 4, ‘child’ refers to a person who is below the age of 18 years old.