Cindy Crawford doesn’t give unsolicited advice to her children. The 58-year-old model – who has Presley, 24, and Kaia, 22, with her husband, Rande Gerber – has revealed that she doesn’t offer advice to her kids unless they specifically ask for it. Cindy – who has been married to Rande since 1998 – told the ‘Kelly Corrigan Wonders: About Your Mother’ podcast: “They know if they ask me, they’re going to get my real opinion. “But if they don’t ask me … I really try hard, and I’m probably about 70 percent good at this … I try not to offer unsolicited advice.” Cindy actually learned the life lesson…