Fashion cults like Teddy Boys don't 'start', they just evolve. It only takes two or three people to develop a distinctive style, and if people like it, they adopt it. This has been the same with every youth cult from the mid-1950's onwards. That was roughly the time when the post-war generation had disposable income and a different set of attitudes created by being born and raised in a time of peace, as opposed to a time of either war, or the austerity caused by war.