The rock star spoke with Andy Cohen on Radio Andy, where he had nothing but praise for his soon-to-be daughter-in-law. While many brought the couples young age to attention, Bon Jovi has no concerns.
"When your almost 21-year-old says, 'I'm getting engaged,' do you worry for them that they're too young?" asked Cohen, who also noted that Bon Jovi was high school sweethearts with his wife, Dorothea Hurley.
"I don't know if age matters," responded Bon Jovi. "If you find the right partner and you grow together."
"That would be my advice," he added. "Growing together is wise."
Bon Jovi also proudly mentioned that three of his four children are engaged.
"I think that all of my kids have found the people they think they can grow together with and we like them all."
"Millie's wonderful. Her whole family are great. Jake is very happy."