detailed:
1 If the young people(under 40 years of age)from any developed countries, and he or she is a celebrity, such as: famous actor, singer, model, entrepreneur, want to visit USA, not need to handle visa.
2 Anyother young people (from any developed countries), if he or she have enough high income, have stable work, and have good credit history, if travel to USA should handle visa. But after again travel to USA (when under 40 years of age), can be reduced the standard to handle visa. (For high-income person only!)