Perhaps the hideous bollards will save us from a devastating hatchback attack. But deflect an airborne missile? Or Deliveroo delivering something a little spicier than expected? Nope.

Useless. And - worse than useless - ugly. The pretence of defending our beautiful city by installing the most utilitarian-looking and pointless lumps of metal is, ironically, indefensible.

Joanna Appleby, Appleton Roebuck, York