Benjamin David Simmons was born in Melbourne, Victoria, Australia, to David and Julie Simmons. His father played college basketball for Oklahoma City University in the United States and later joined the Melbourne Tigers in Australia's National Basketball League. Simmons has five brothers and sisters: Melissa, Emily, Liam, Sean and Olivia. He began playing basketball at the age of seven for the Newcastle Hunters' under-12 representative team. In January of 2013, Simmons moved to the United States to attend and play basketball at Montverde Academy in Montverde, Florida. The following year, Simmons averaged 18.5 points, 9.8 rebounds and 2.7 assists per game as a junior. He led Monteverde to a 28-0 record and a victory in the High School National Tournament at Madison Square Garden. Simmons took home MVP honors, tallying 24 points and 12 rebounds in the championship game. In his senior season, Simmons averaged 28.0 points, 11.9 rebounds, 4.0 assists and 2.6 steals per game while shooting 70.7 percent from the field and recording 24 double-doubles. He was then named the Naismith Prep Player of the Year and the Gatorade National Player of the Year. Simmons was also chosen to play in the annual McDonald's All-American Game and was named the Morgan Wootten Award winner, given annually to the best male McDonald's All-American player who exemplifies outstanding character, exhibits leadership, and embodies the values of being a student-athlete in the classroom and in the community. In addition, Simmons was tabbed Mr. Basketball USA and named a First-Team Parade All-American. Simmons has been involved in numerous charitable causes since joining the NBA. He holds annual basketball camps in both Australia and the United States to teach basketball skills to children and young adults. Since 2018, Simmons has hosted "Coats for Kids," an event organized to provide every student at a Philadelphia elementary school with a coat for the winter. In 2020, he took part in the #AllInChallenge, raising funds for food-related charities such as Feeding America, Meals On Wheels, World Central Kitchen and No Kid Hungry. Learn more about Simmons by following him on Twitter (@BenSimmons25) and on Instagram (@bensimmons).