That was a thing in the past, nowadays not anymore. None of the main F3 championships (and by that I mean Euro, US and Japan. Even the Asian F3 is not linked) require you to drive there reallyWrong, if you're a F3 driver and is trying to achieve higher series you're exactly forced to race there, if F1 drivers think like you we're still seeing 20% of the field death each year as it uses to be.