Tom Brady celebrated his son Jack's 18th birthday on Friday. The seven-time Super Bowl winner uploaded multiple photos of Jack over the years, welcoming him to adulthood. He also gave his son a reality check about life."From little steps to big dreams, happy birthday Jack," Brady wrote. "You’ve always shown grace, courage, love and kindness since God blessed us with your arrival. I’m so proud of the man you are! Welcome to adulthood, it comes with higher credit card limits, bigger bills, and no curfew … OK maybe not all at once!"There is a saying that a dad’s heart soars with his children’s happiness, not with his own … Truer words could not be spoken. We love you so much and I know this will be your best year yet." View this post on Instagram Instagram PostTom Brady shares Jack with his ex-girlfriend, Bridget Moynahan.Tom Brady's son Jack might follow in his father's footsteps while choosing collegeTom Brady played college football for the Michigan Wolverines. It seems like his eldest son might follow in his footsteps, but with a twist.During their vacation in Europe, Brady uploaded Instagram stories of his son dunking while playing basketball. Brady tried to get the attention of Michigan's basketball team by tagging them in his story."He got game 💯 Future Wolverine @umichbball,” Brady wrote in the caption.“@willmakris feed him," Brady wrote on the next story.