If you are planning on visiting Massachusetts to play slot machines, you must know that slot machines are illegal in the state. This law was ratified by the voters in 2008 through an amendment to the state constitution. The Act of 2007 Special Session was Chapter 5, and Article XIX, section 1 of the constitution.
The law also prohibits underage gambling in pari-mutuel betting. However, loitering is still permitted in casinos. However, you cannot collect money from a slot machine or a pari-mutuel operator if you are under 21 years old. In addition, it is illegal for minors to bet on horse races or other games that involve dice.