Despite the popularity of casino gambling, the average casino gambler is not a teenager. In fact, a majority of casino gamblers are over the age of 45 and come from middle-income families. This is a reflection of the culture and the economy of Nevada. However, there is one important factor that distinguishes casino gamblers from other casino-goers: age. People who play in casinos are typically older, and they often have more free time and money.

Gambling has existed since before recorded history, with the first primitive protodice known as astragali (cut knuckle bones) and carved six-sided dice. A casino as a venue for gambling did not emerge until the 16th century. The popularity of gambling in the 16th century spread across Europe, and Italian aristocrats held private parties in clubs called ridotti, where gambling was the main activity. The Italian Inquisition was often expected to visit such clubs, which made the casino atmosphere even more exciting.

Gambling in the United States went through several waves during the 1800s. During the Wild West, it was a staple of the culture. Eventually, however, moral conservatism took hold and the gambling industry declined. As a result, New Jersey became the first state to legalize casino gambling in the early 1990s. In addition, Native American tribes also began to enter the gambling business. Today, there are more than 200 casinos across the United States.