the greater issue is one of fake i.d.
it seems that we are at war, leastwise there are multiple groups who have invaded our country so as to perform terrorist acts. hence, the ability of any peace officer to properly identify a suspect is welcomed by those who have nothing to conceal. producing false i.d. would justify further inquiry. same as a fellow who had multiple driver's licenses in multiple states, because of multiple violations. since a licensed (liquor) establishment is required to verify the age of all guests, the guest must either furnish satisfactory i.d. or immediately leave.
same with nevada gaming. not commonly known is that even the beverage servers, beyond the dealers, pitstiffs, security and surveillance agents, are licensed by the nevada gaming commission. they are required to inquire of any guest of questionable age, that they produce i.d.. failure to do that, and the joint is fined, and the individual who didn't ask for the i.d., may lose their ability to work in nevada gaming.
as a sidelight to that, while in college, i worked as a bartender at an 18 year old beer bar. the "record" for the oldest guy "i.d.'d" was 34. not my record.
consider if i had a stolen credit card in my possession. even if i wasn't apprehended in attempting to use it, if found on my person, why wouldn't i expect to be arrested ?
the issue is that one may legally change his/her name. perhaps if some of the posters had traveled in (mostly socialist) europe, you might understand that they've been requiring police registration of all guests, since at least the 60's. the hotel keeper, even pensione keepers, customarily made available to the police, usually each evening, the travel documents of registered guests. typically the guest would surrender his passport at check in. same on an international passenger carrying ship (even "cargo ships"), to be held by the purser, saved for inspection by officials of any visited port.
i stopped carrying fake i.d.'s when i reached majority.