LOS ANGELES—Ten years ago actor Ashton Kutcher was planning to be among the first people to ride on Virgin Galactic’s private spaceship, but he changed his mind after having children with Mila Kunis. The former “Two and a Half Men” star said he was supposed to be on the next Virgin Galactic flight but pulled out years ago. “When I got married and had kids, my wife basically encouraged (me) that it was not a smart family decision to be heading into space when we have young children. So I ended up selling my ticket back to Virgin Galactic,” Kutcher, 43, told financial news streaming site Cheddar News in an interview on Thursday. “I was supposed to be on the next flight, but I will not be on the next flight,” he added. British entrepreneur Richard Branson and five other Virgin Galactic employees on Sunday took the first fully crewed …