Does banning a good or service substantially reduce its consumption? Or does it mainly drive the market underground or to substitute products?
Research on banning minors from adult websites suggests the latter. The researchers looked at
individual-level browsing data from approximately 550,000 US desktop and mobile internet users between 2022 and 2024. … [The] findings reveal that age-verification laws reduced overall time spent on adult websites, but these effects were muted by users circumventing blocks and switching to noncompliant websites.