^^ This really opened my eyes to this problem for me.. It's really rather worrying, and I guess my generation (early 30s) were the last to avoid this so it's kind of invisible to us because of how awkward it is to talk about such things.
We need to do something, perhaps better education and getting more comfortable talking about sex and relationships with young people is a better approach than failed-from-the-outset restrictions...
Either way, the points in that video are imo, valid, and should worry everyone.
There is a pool of resources related to damage the porn has done for this generation from scientific studies, ex and recovering porn addicts and as well as from the partners of addicts.
Lots of people watch porn without becoming porn addicts.
For example, I'm a fan of Game of Thrones, but I wouldn't watch it with an 8-year-old. Extrapolate that to the realm of porn—especially of the BDSM or other such role-playing and kink variety—and we wind up in a place of genuine conflict for some parents, even those who might enjoy such things themselves. Moreover, there is more than a small amount of collected evidence and accounts from people who document how such material is impacting such things as teenagers' views on sexuality and what behaviors are normal, as well as young women encountering what they report as the effects of porn on their teen male peers—with such reports including expectations of sexual acts before they've even shared a kiss. The prevalence of such information and imagery, which the average adult may be able to successfully contextualize, provides a different set of challenges to the inexperienced and less mature adolescent population.
So, no, what the parent said wasn't that "information (and ergo imagery) is accessible" is the problem. It's more likely that the problem is there's no shortage of ways that people, young or otherwise, can stumble upon or be introduced to things that can be seriously problematic for their level of maturity and development.
Despite all that, just to be very clear, I'm not suggesting that government-issued porn IDs or similar programs are the answer, or that they would even help solve the problem some people legitimately worry about and feel matters for their, and their children's, lives. I see a lot of problems with even suggesting that, and think it's an awful solution. But I think there's value in recognizing there is a problem strongly felt by many people, and the problem isn't merely access to information and imagery. As with many things in life, I find myself mixed between recognizing the value in empathizing with and understanding people's concerns, and unapologetically upholding on principle the accessibility of information (and imagery) some may find objectionable.