"Reality TV is not a career. Get back to a normal life -- a simple life. Provide for your family," Jon told RumorFix in response to Kate's new People magazine interview in which she admitted she is "freaking out big time" over the network's recent announcement.
"Nobody was. I've never quit a job in my life without having something else lined up. I don't know what's next," the 36-year-old single mom said.
However, Jon expressed how he has no doubt Kate will be just fine in the real world.
"Things will work out the way they should work out. Obviously there are families out there that have several kids. People work normal jobs and things work out. Everything is possible," he told RumorFix.
During her interview with People, Kate also vowed she will do whatever it takes to keep her children living in the large 7,000-square foot, 24-acre home the couple bought for $1.1 million in 2008.
"I told them I will work my fingers to the bone to make sure that they can stay here and go to their school. There are no guarantees in life for anyone, but they know that I'm giving it my best shot," she explained.
However, Jon suggested it wouldn't be the end of the world if Kate and the kids were forced to downsize to a smaller house due to financial reasons.
"I don't have a farm on 24 acres and the kids seem to have a great time at my house," Jon told RumorFix, adding that he has regularly been paying child support, sees his children "a lot" and has been thoroughly enjoying his life away from the cameras.
"I go to work every day and provide for my family. I spend time with my kids -- spend time on the weekends. I spend time with the girlfriend I've had for over a year now and enjoy a normal lifestyle."