Club Usa Casino

Is it worthwhile holidaying in america when im not 21?
im 19, legal in aus but not in the usa. will it still be a worthwhile vaccation, and will i be able to get into any clubs or casinos in vegas?
not in vegas but some other places see this list: http://www.worldcasinodirectory.com/gambling_age_chart.htm
in Vegas this is strictly enforced
NO ONE under the age of 21 is legally permitted to gamble or to loiter in or about ANY gambling area under ANY circumstances. They WILL be asked for picture ID and likely escorted out of the area or off the property, or in some circumstances conceivably even arrested and fined, if caught.
you may be able to buy and or drink and many bars across the US but not in Las Vegas.