Yes I understand people that intent to groom exist, everyone in this thread has already said they are in the wrong and should be punished. Also it is extremely easy to get a fake ID especially if they do not need a physical one and only need to show proof of it via a screen shot. Photoshop or any editing program are not difficult to find or use.
Please understand I do not think they should get a pass but I also do not think no one is really willing to do what what is necessary to combat such things in a preemptive manner. As another poster mentioned that would require us to give up our anonymity and I doubt many parents would even be in favor of that. As such only methods we have to combat such things will always be reactive in nature. Though through proper education and supervision the bad actor can be caught fairly early in the act before any serious damage was done. I do not ERP, but if it is anything like real thing the foreplay should be an important factor.
Cause let us be fair what you are pushing for intended or not is the either getting rid of player anonymity or moving towards punishing individuals for a potential harm they may or may not cause. Both of which do not seem like very logical positions. In the end the responsibility falls on the parent as mentioned I have an FC mate that monitors what their child does in game, they also play along side of them. For the longest time they legit only let them use a F2P account, and when they upgraded their account they went into the setting and turned off the all the chat functions for a time. They still worked 12 hour days, but found the time to monitor their child to keep them safe cause as you mentioned they understand that this game does have some unsavory forms of entertainment especially on the PF. Good parents find the time to monitor their children, bad one make excuses and pass the buck to others because that is just easier.