In Indiana, the legal gambling age is 21, so you cannot gamble at 18. The state’s laws strictly prohibit individuals under 21 from participating in any form of gambling, including casinos, racetracks, and online gambling platforms. This age restriction is enforced to prevent underage gambling and protect young adults from potential financial risks associated with gambling activities. Therefore, if you are 18 in Indiana, you will have to wait until you reach the legal gambling age of 21 to participate in any gambling activities within the state.