Brain is not fully developed by age 18 anyway, not by a long shot, and there's no obvious developmental milestone there either, like puberty, or whatever.
18 tries to establish a sensible balance from both extremes, but there is nothing magical or moral about it when compared with 17 or 19 or whatever in than range.
Well, not really. If you try to ostracize someone for being black you'll quickly face legal and/or social sanctions.
>Also, please try to show a single example of a person who defended pedophilia and ended up not being one?
Does expressing skepticism of the scientific basis behind anti-pedophilia laws constitute "defending" pedophilia? Furthermore, if the argument is valid, who cares who's mouth it's coming from? This looks like a lazy attempt to dismiss someone's argument.
One wishes that were true, but in most places in the developed west it absolutely is not.