How it started
Early life
David Alan Coulier was born on September 21, 1959, to David L. Coulier and Arlen Coulier in Detroit, Michigan, and was raised Catholic in nearby St. Clair Shores. He has three siblings. His mother's side of the family is from Bathurst, New Brunswick, Canada, and his paternal grandmother was a Jewish immigrant from Germany.
Coulier got his start in stand-up comedy in high school by impersonating his principal and other staff over his high school's public-address system. He graduated in 1977 from Notre Dame High School in Harper Woods, Michigan, where he was a member of the varsity ice hockey team, playing defense alongside future NHL player John Blum. Coulier also attended high school with Mark Cendrowski, who became friends with him in the third grade and they often made 8mm films together during high school.
Coulier attended the University of Michigan but dropped out after his freshman year to pursue comedy full time.
Career
Coulier met future Full House co-star Bob Saget for the first time at a comedy club in Detroit. The two became good friends and Coulier briefly lived with Saget and his then-wife Sherri on their couch in the early 1980s as he struggled to get his career started. At age 19, he moved to Los Angeles, California and began performing at The Comedy Store, alongside other comedians including Jay Leno, David Letterman, Jerry Seinfeld, and Robin Williams.
From Wikipedia’s article on F3 Entertainment, shared under CC BY-SA 4.0.2