The problem is many people are genetically predisposed to things such as alcoholism,drug addiction and gambling amongst other things. Most people are actually not like you in thinking that everyone can control their own destiny.
So a couple of links on addiction.
Researchers are developing and testing new ways to prevent substance use, addiction, and other substance-related harms.
nida.nih.gov
A flurry of recent publications sheds new light on the gene variations that drive a wide range of addictions.
www.rutgers.edu
And a study from Australia on Pathological or disordered gambling.
Context Women now represent nearly half of all individuals in treatment for pathological gambling (PG), but relatively little is known about the causes of PG among women or potential sex differences in the causes of PG.Objectives To (1) investigate the role of genetic and environmental...
jamanetwork.com
Many of us are imperfect and things are not so simple for us as just making a decision to do or not do something.