Texas, a conservative state with a large faith-based community, has long considered gambling a vice,  so the prohibition on casinos followed suit. Note: It's important to define gaming and gambling because they are two different things. Gaming is participating in legal, state-sanctioned wagering.
Legal forms of gambling in the U.S. state of Texas include the Texas Lottery; parimutuel wagering on horse and greyhound racing; limited charitable bingo, limited charitable raffles, and three Native American casinos. Other forms of gambling are illegal in Texas.