# Gambling Progression in Young Adults Following Online Casino-Gambling Legalization in Switzerland

**Authors:** Alexander Tomei, Marion Bieri, Clément Porchet, Olivier Simon

PMC · DOI: 10.1007/s10899-025-10435-6 · 2025-09-27

## TL;DR

This study examines how gambling behaviors changed in young Swiss males four years after online casino gambling was legalized.

## Contribution

The study provides new insights into gambling progression and problem gambling rates following online gambling legalization in Switzerland.

## Key findings

- 70.6% of young Swiss males reported lifetime gambling, with 49.8% gambling in the past 12 months.
- Problem gambling was linked to online gambling, mixed platform use, and a wider variety of games played.
- A slight, non-significant increase in problem gambling was observed following legalization.

## Abstract

This study investigates gambling behaviors among young Swiss males four years after the legalization of online casino gambling in Switzerland. A total of 2,349 conscripts aged 18 to 24 years, residing in the French-speaking region of the country, completed a paper-and-pencil questionnaire assessing their participation in land-based and online gambling, as well as problem gambling. Overall, 70.6% reported having gambled at least once in their lifetime, and 49.8% had gambled in the past 12 months. Among past-year gamblers, 58.3% engaged exclusively in land-based gambling, 34.4% were mixed (land-based and online) gamblers, and 7.3% gambled exclusively online. The majority (74.7%) accessed online gambling via smartphone or tablet. Among past-year gamblers, 4.4% met the criteria for problem gambling, representing 2.1% of the total sample. Problem gambling was associated with more frequent gambling, engagement across both online and land-based platforms, participation in a greater variety of games, and involvement in online casino gambling. In conclusion, four years post-legalization, we observe increased gambling participation, a shift from land-based to online gambling, and a slight, non-significant increase in problem gambling. Continued monitoring of gambling behaviors in this population is essential to detect and respond promptly to potential increases in problem gambling.

## Full-text entities

- **Diseases:** Gambling (MESH:D005715)

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Source: https://tomesphere.com/paper/PMC13009121