Use Device without entering SIM pin at boot

[drgt]

If I take the SIM out, the device will boot and give me access to contents, (obviously, phone is off).
BUT if SIM is in, I cannot get past the pin input screen, and this is exactly what I want to do.

I want to be able to give the device to my son to i.e. read a pdf, but I do not want him to be making / answering calls on my SIM.

Sure, I can take it out, but do not want to if I do not have to. (I might lose it too!)

 

[drgt]

SOLVED!
At the sim pin request screen, press and hold power button, enable "Airplane mode"
DONE.