Simpson grew up in Martin, Tennessee, and attended Westview High School.[1] He passed for 1,888 yards and 20 touchdowns while also rushing for 311 yards and seven touchdowns as a junior.
Simpson joined the Alabama Crimson Tide as an early enrollee in January 2022.[7] He made his college debut in the season opener against Utah State, completing one of two pass attempts towards the end of a 55-0 win.[8] Simpson played in four games during his true freshman year while redshirting the season.[9]