The er of slot machines( ) Slot machines or fruit machines have become very popular throughout the world. Just the lights and sounds can make the slot machine addict very excited This addict can lose a lot of money on the slot machine. Hobby gambling can very quickly turn into compulsive gambling on casino slot machines. This is the reason why the age limit in Las Vegas is 21. If a player who is younger than 21 even just pulls the lever ( 杠杆 )on the slot machine, he or she will not be al