The Beautiful Things hitmaker was raised as a member of the Church of Jesus Christ of Latter-day Saints and - while he is no longer a Mormon and has since tried coffee (which is also banned), he still abstains from other substances.
Speaking to Rolling Stone magazine, Boone explained: "I just think for me personally, like, dude, I would die. 'Cause I have such an addictive personality.
"I feel like if I started, I would do it so much that my health would just decline and I wouldn't enjoy touring as much."
Asked how he knows he has an active personality, he added: "Dude, candy!"
Despite his devout upbringings, the 22-year-old singer has grown up to realise his beliefs don't centre on any specific religion.
He said: "I don't want to be a part of one religion. I have my own opinions. Some are from this religion, some are from this religion, some are from no religion."
He initially grew up hearing people at church "talk about these experiences that they've had and these personal revelations and feelings and voices".
He recalled: "I never felt it as physically present as they did, and so I was always confused and frustrated.
"I was always scared to bring that up to people because I just didn't want to accept that, like, I wasn't feeling what everyone else was feeling."
Boone spent a semester at Brigham Young University during COVID-19, and avoided its on-campus rules including a dress code, as well as bans on sex, beards and cursing.
He dropped out to pursue music, and he's glad his bond with his parents is still strong even as his own faith changed.
He added: " My parents definitely have their own views, but when it comes to religion and God, they want me to figure it out on my own.
"And whatever I come to, and whatever I feel is right, that's what they want for me."
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