Jack -- Brady's son with actress Bridget Moynahan -- is currently playing high school ball as a free safety and quarterback (go figure) ... and while there could be a TON of pressure having the GOAT for a father, the Buccaneers superstar says that's not the case.

"I don't give a s*** how well he does," Brady said on his "Let's Go!" podcast with Jim Gray and Larry Fitzgerald. "I just love watching him and seeing him enjoy it with his friends."

BTW -- Jack hit up one of Brady's games recently ... and that kid is certainly growing up quickly!!

"I think one of the great highlights of my life is watching him play," Brady added. "I love watching him dig deep."

Brady says it's "so much fun" to check out Jack's games ... and believes the kid is already a better athlete than he was at 15.

"I love watching him playing quarterback," Tom said. "He's a very good athlete, great hand-eye coordination. He actually moves better than I did at his age."

Jack's football interest was clear when he hit up Bucs training camp in 2021 ... serving as a ball boy for a bit.

Brady quipped that he's mostly a one-trick pony when it comes to life skills ... but if there's one thing he can help Jack with, it's playing the QB position.

"I don't have a lot of specialties in life other than throwing the football," he said. "He's way smarter. He's got a great work ethic. He's just a great kid."

"But I can definitely help him at quarterback. That's one thing I'd say I can definitely help him with in the future."