Age does play a role in this. Adults have at least the possibility to have developed better critical thinking, life experience to make an appreciation of what's

Age does play a role in this. Adults have at least the possibility to have developed better critical thinking, life experience to make an appreciation of what's being offered to avoid predation. With you on the struggle against modern slavery that is rampant against adults, let's not make it a child/teen only concern, but until then we certainly need to distinguish adults from the to become grown up men and women. There is a reason we have different moral, legislation and rules w.r.t the treatment of children. That applies to employment, intimate relationships, sales of stimulants, ability to hold a credit cards etc. All down to the fact all the way to being a teen, humans are still in the process of brain and experiences maturation to take on society and independence on their own, without special protection.