“…The most frequently reported gap across studies was a need for the development of treatment and preventative programs, along with efficacy studies [21,29,38,39,[62][63][64]90], including specific programs that target subgroups of adolescents and young people whose needs may be different, such as low-, moderate-, and high-risk gamblers [31], at-risk adolescents and young people [43], and different age groups [66]. Studies were in agreeance that preventative and educational programs should begin in secondary schools [26,27,88], particularly because 14 years was the most frequently reported age of gambling initiation among adolescents [33].…”