Where sports betting is legal, it's often limited to those 21 years or older. Kalshi and Polymarket are open to anyone 18 or older, with some exceptions.
Source: CNBC
15. January 2026 19:57
Where sports betting is legal, it's often limited to those 21 years or older. Kalshi and Polymarket are open to anyone 18 or older, with some exceptions.
Source: CNBC