Because we all share the same fetish, it'd be hypocritical for us to tell our own kids to not watch porn, so a much better option is to lead by example.
I looked up the Pornhub scandal just now, and apparently the owner was involved with sex trafficking. This would explain why C4S is now legally required to ID everyone who buys from them. Why this doesn't solve any problem (in fact makes the problem worse) is because someone who buys something from a studio on there isn't looking to be a model. Someone could argue giving away information like a credit card number could lead to the person being stalked, harassed, or even abducted, because it reveals so much information about a person, and I'm sure identity thieves have some connection to sex traffickers. However, that makes the studios who don't engage in sex trafficking guilty by association.
Not really.
They already enforced stuff for platforms and producers (and this is why we all upload the ID and contracts of models on c4s)
Checking the ID of customers comes from the idea that anybody (including children) can click Yes on a Pop up.
Feminist group argue that :
1) Porn industry is a lot of fake and Evil (which is mostly true for mainstream)
2) Male Children are raised with the idea that women are just objects, and it leads to rape culture when they become adults.
The problem is that while parts of it is true, there is no right way to verify the age of people on internet (credit card checks ruins website traffic, ID check ruins conversion rate ...), and of course privacy concerns.
By the way age verification is a cost / customer.
Note that the companies doing age Verification, to be fair, are pretty good at their job and I would not worry too much about ID leaking. But this arms the producers and platforms a lot more,
The perfect solution would be
sex education, but there will always be bad apples anyway.
And doing something (even if it's a stupid or disproportionate solution) looks better than doing something good on the long term