In most countries, people at the age of 18 years are considered to be adult thus allowed to make their own decisions. Some parents, however, allow their kids to do what they want when they are 16 or 17 years. This also depends as some are restricted by their parents until they move out.
Good question , umm I guess never , see for me to do WHATEVER I want . I would be hurting and tearing apart the very things that I work hard to build . I would be slitting my own throat . Plus I have responsibilties that can not be ignored . Plus lol I have parents that still love to tell me what to do . They are harmless !! And always mean well .!