On May 14, 2018, the Supreme Court struck down the Professional and Amateur Sports Protection Act, opening the door for states to legalize sports betting. Within seven years, 38 states and Washington D.C. had done so. The legal sports betting market in the United States grew from essentially zero to over $120 billion in annual wagers by 2025.
The industry celebrated this as a triumph of consumer freedom. Public health researchers watched with growing alarm.
The Scale of the Expansion
The numbers are staggering. In 2018, Americans wagered approximately $4.9 billion legally on sports. By 2024, that figure had exceeded $120 billion — a 24-fold increase in six years. The majority of this betting happens on mobile phones, 24 hours a day, from anywhere.
This is not your grandfather's trip to Las Vegas. Sports betting is now as accessible as ordering a pizza, and it is marketed with the same casual normalcy.
Who Is Betting — And Who Is Getting Hurt
The demographic profile of sports bettors skews heavily young and male. Studies find that men aged 18–35 are the most active sports bettors and the fastest-growing segment of problem gamblers. This is particularly concerning because:
- Young adults have less developed prefrontal cortex function, meaning weaker impulse control
- Many are experiencing their first significant financial independence and have limited experience managing money
- The social normalization of sports betting — through advertising, social media, and peer culture — reduces perceived risk
- Live in-game betting (betting on individual plays, at-bats, or possessions in real time) is particularly addictive and is heavily promoted
The Advertising Onslaught
The sports betting industry spent over $1.5 billion on advertising in 2023 alone. This advertising is pervasive, sophisticated, and specifically designed to normalize gambling as part of sports fandom. The message is consistent: betting makes sports more exciting, more personal, more meaningful.
"The industry has essentially merged sports fandom with gambling. For a young person growing up now, watching a game without having a bet on it feels boring. That's by design." — Dr. Keith Whyte, Executive Director, National Council on Problem Gambling
The Research on Harm
Early research on the public health consequences of sports betting legalization is beginning to emerge, and it is concerning:
| Finding | Source |
|---|---|
| States with legal sports betting show 30% higher gambling helpline call rates | NCPG, 2023 |
| Online gambling accounts for 60%+ of problem gambling cases in states with mobile betting | Journal of Behavioral Addictions, 2024 |
| Sports bettors show higher rates of financial harm than casino gamblers | American Journal of Public Health, 2023 |
| Live in-game betting is associated with 2–3x higher problem gambling rates than pre-game betting | International Gambling Studies, 2024 |
The Industry's Response
The major sports betting operators — DraftKings, FanDuel, BetMGM, and others — have implemented responsible gambling features including deposit limits, cooling-off periods, and self-exclusion options. Critics argue these tools are inadequate, difficult to find, and undermined by the same marketing that drives problem gambling in the first place.
The industry funds responsible gambling programs through the National Council on Problem Gambling, contributing approximately $6.5 million annually. Public health researchers note that this represents less than 0.01% of annual wagering — a fraction of what would be needed to address the scale of harm.
What Needs to Change
Public health advocates have called for a range of policy interventions:
- Restrictions on advertising, particularly during live sports broadcasts
- Mandatory affordability checks before large deposits
- Default deposit limits that require active opt-out
- Increased funding for problem gambling treatment, proportional to gambling revenue
- Prohibition of certain high-risk features like live in-game betting on mobile
The sports betting expansion is not going to reverse. But the public health response to it — in treatment, prevention, and policy — is still being written.
