These are the same parents who buy GTA for their kids because they're clueless. It's ultimately their responsibility to know what their child is into and if they don't know what Fortnite is then they should go online and research it. The Internet makes this easy so there's no excuse.
"Hard times create strong men. Strong men create good times. Good times create weak men. And, weak men create hard times." - Those Who Remain by G. Michael Hopf