To access .xxx, you would submit your name, address, proof of age to whomever runs the regime and be given access. Sharing pornography should be a crime, especially if shared with minors. In a perfect world... Since we don't live in a perf3ct world, I'd be happy to see a forced TLD. Violators lose rights to any and all domains in perpetuity and are forbidden to start new ones. A 1M fine should suffice.
It's a proven fact pornography harms everyone involved. Men who are chronic users suffer impotence issues with real women. Pornography demeans women and lowers them to the status of sex machines, there only for the enjoyment of men. Women that are lured into the industry suffer horrendous self-esteem issues, die young, suffer from diseases, some fatal, and are reviled if/when they escape the industry. Not a good scene no matter how you slice it.