I've been thinking about this recently and I disagree. Keep biometrics and know how to disable them quickly (usually 5x power button)

I think the most likely case where you'll be compelled to hand over your device is an airport immigration desk / room. And what do airports have? Lots and lots of CCTV. From the moment you step off the plane or jetway into the terminal there are cameras everywhere. Enter your PIN once in view of those cameras and it's on record for forensics to pick up.

I actually hate when my phone requires me to enter my PIN on public because I have to angle it away from cameras and eyes like I'm looking at smut.