I have a wife and children. My wife, who is my life partner does not feel the risks of not filing are worth the rewards.
For those keeping score, as much as I love freedom and liberty, I love my family more. I consciously give up many freedoms and liberties to try and maximize my odds of keeping my family together and out of harms away. If that means paying extortion bribes, registrations, and all manner of legalistic harassment, so be it.
I fully recognize the irony of a freedom lover probably being more compliant with the law that most people who support the law, due to having a greater knowledge of it than average, and a conscious desire to keep a low legal profile.
Not only do I file taxes, but I pay taxes above and beyond the minimum I can squeak away with. This is because I refuse to submit my children to the tax rolls, and as such I cannot claim them as exemptions. And yes, every year I'm reminded of how much the government values my kids.