"It's coming, and I'm nervous about it," Smith, 43, told People magazine Wednesday. "Having two boys and a girl, I realize that boys take trouble to other people's houses, and girls bring it home."
"So, the thing we are struggling with is the rules," the Fresh Prince said, "and setting fair rules for the boys and for Willow, but she's not having any of that."
Smith said he doesn't want Willow to date until she's 40 years old, but when she does, he has a plan.
"When Willow does bring a boy home, I'm going to screen him and find out everything about him," he said.
Celebrity Breakups and divorces of 2014 [PHOTOS]