In Las Vegas, the legal gambling age is 21 years old, which applies to all casinos, poker rooms, and sports betting venues. This age restriction is strictly enforced, and individuals must present valid identification to participate in any gambling activities. While some attractions, like certain shows and restaurants, may allow younger guests, the gaming floor is off-limits to anyone under 21. It's essential for visitors to be aware of these regulations to avoid any legal issues and ensure a fun and responsible experience in Sin City.