It's very interesting, because brain research now helps us to understand that the brain is not completely mature until you're almost 25 years of age. The prefrontal cortex, the part where you make good decisions and have cognitive understanding of the consequences, is the last part of the brain to be completely mature. From the standpoint of age verification, certainly 18 would be the minimum age, in my opinion.
One more thing I would say is that in addition to this realization about brain development, countries across the world need to review their laws with respect to the consequences of young people who make mistakes and who may end up in the criminal justice system now that we understand that the prefrontal cortex is not even close to mature at this point. In the United States, we are thinking about whether or not we should ever prosecute a minor as an adult for a crime that they may have committed even at the age of 17 or 16 or 18. Instead, we should be thinking more perhaps about the age of 21. This is another legislative thought process that one might consider, particularly within the context of this normalization of digital harm that we see in information and communication technology.