Why? (Am not trolling. Genuinely interested)
I walk out my front door in the UK and I am not anonymous. Every transaction I make either identifies me through bank, railway or other id, or quite simply by my face standing in front of the coffee seller. My walk down the road is observed by neighbours and postmen.
Should my government arrest me without cause or trample on my free speech rights, I get that’s a problem but I am not sure why being anonymous helps. Having rights upheld by the courts helps, well trained police who respect the law helps.
I am honestly open to debate on this but I do find the “what if Hitler took over government where would we be” to be a problematic argument not a final answer.