no, I dont normally wear one I did try for it a year or so and then one ride without convinced me otherwise, mainly cos I'm a bit of a sweaty betty and a helmet only adds to this. Putting on a sodden smelly helmet fills me with no enthusiasm. I would wear one for mountain biking or for unlit night rides.
I use my bike for shopping/work/socials and dont want to carry round a helmet.
I personally dont buy into the "my helmet was cracked/smashed, so without, my head would have been so" - a helmet is a crumple zone designed to break, and whilst there could well be significant head injury, there is no guarantee it would have been so without.
I'm not inviting any stick on this, but dont insist my kids wear one. i dont want them growing up thinking cycling is a hazardous hobby requiring special protective clothing. If they want to ride a bike on an ad hoc basis, they should feel free to just pick one up and go.
Just like the person who forgoes paying for an insurance policy, I'm aware of the risks.
My tuppence anyway.