I know I often sound like the decency police, but a relative of mine was an extra in a direct-to-DVD film recently, and one of the actors in it had been up-and-coming actor until he had his career ruined after the fact he had stared in gay porngraphy when he was 18 when he was broke and needed money desperatley came to light. BTW the actor has said he's straight in the press and the films he started in were solo but aimed at gay buyers. That said, I think this anecdote illustrates my point ... IMO 18 is far too young to star in pornographic films, teens are less mature than they were a while ago, and it's a big decision that many will regret in a few years time. 21 is a better age for them to make the decision about whether they should star in porn, by then they will have been at college/work for a few years and they will have better judgement.
Also, I find the fact pornographic studios target actors who have recently turned 18 and look young for their age and market them as 'barely legal' to be disgusting with pedophiliac elements.
Also, I find the fact pornographic studios target actors who have recently turned 18 and look young for their age and market them as 'barely legal' to be disgusting with pedophiliac elements.