How do I target blur in a currentcamera?

I placed a LocalScript in StarterPlayrScripts that's supposed to turn on blur.

workspace.CurrentCamera.Blur.Enabled = true

It doesn't work, and I don't know why, doing this doesn't help either.

game.Lightning.Blur.Enabled = true

How would I target the blur for a local player, and turn it on?

You can insert the BlurEffect instance into Camera, and edit the Size value of it with the LocalScript