Why should internet porn be the ONLY exception to requiring age verification? We already require age verification when you buy drugs, buy guns, vote, buy a dri

Why should internet porn be the ONLY exception to requiring age verification? We already require age verification when you buy drugs, buy guns, vote, buy a drink, buy porn mags from a store, buy cigars, access alcohol websites, access gambling websites, etc But if you're a 10 year old trying to watch adults fuck each other, that's totally fine (as long as its on a screen of course, but not a window screen, and certainly not in person - a distinction that apparently makes all the difference). Nevermind that children can't consent to the harm, just as they can't consent to drink alcohol or smoke cigars, or look at porn in a magazine. Do you have a reason why internet porn should be the ONLY exception to requiring age verification for adult things?