Again, not a good analogy.
A legal requirement for a liquor store to check the ID’s of customers does not infringe upon an adult’s right to legally purchase alcohol.
Obama administration restrictions on what news and entertainment content a network can broadcast does infringe upon rights.
No but it makes the vendor responsible for verifying that the transaction is legal. If you are going to broadcast porn openly, you need to verify that the recipient is legally allowed to have it.