Born in Ridgewood, New Jersey, and raised in Dallas, Texas. Played basketball and golf at Highland Park High School and won the individual state title in golf three years in a row (2012-2014).

Got started in golf at Orchard Hills Golf Course, a local nine-hole course on the grounds of Bergen Community College in Paramus, New Jersey. At the time, Scottie's older sister, Callie, was part of a swim team which trained at the Bergen Community College pool near the golf course; his father, Scott, needed a way to entertain young Scottie those evenings, so, since Orchard Hills did not have a driving range, they snuck onto the course and hit balls. When it got dark, Scott even stood next to the pin with a flashlight and had Scottie hit balls toward him. According Scott, "The police would kick us off, and we'd come back on, then the police would kick us off again. One day, the guy (at the course) came out I said, 'Could you just watch for a minute?' And he's like, 'Wow. He's really good at this.' Then they wouldn't bother us anymore."

Has three sisters: Callie, Sara and Molly. Callie played golf at Texas A&M and caddied for her brother as he competed in U.S. Opens as an amateur.

Played collegiate golf at the University of Texas where his teammates included Beau Hossler, Kramer Hickok and Doug Ghim.

Is involved with Triumph Over Kid Cancer, an organization started by his childhood friend, James Ragan, who passed away at the age of 20.

Loves to play pickup basketball.

Made a cameo appearance in Happy Gilmore 2, released on Netflix in July 2025.

Was the low amateur at the 2017 U.S. Open at Erin Hills.