Re-helmets, for me its all about a risk assessment. Ive been a motorcyclist most of my life and now how quickly your day can change to hospital food...I wouldnt ever consider wearing an open face helmet on a motorcycle. Each to their own of course. I do believe in avoidance and a keen sense of self preservation. If i lived in the city i would wear a cycle helmet all the time but in the sticks there is less risk. The cheap lid i bought certainly looks like it could take a hefty impact and if it shatters thats ok its done its job. High milers would probably want something better..but then its back again to risk assessment.
Helmets are an emotive issue. We (myself and Mrs
@BoldonLad) wear helmets, mainly at the insistence of daughter No 3 (presumably, she feels she can wait for her inheritance

). Mrs
@BoldonLad has had a couple of "offs", in one instance, helmet was damaged, so, presumably, her head would have otherwise come in contact with the ground, if it were not for the helmet. Comparing the construction of my bicycle helmet with my motorcycle helmet, I would suspect the cycle helmet would not give much protection at speed, but, we are two 74 year olds, and speed is not high on our agenda
I view it as a "personal choice" subject, I would not like to see (cycle) helmets made compulsory, but, would not be "interfering/commenting/advising" on others choice to wear/not wear. When teaching our grandchildren to ride bicycles, the "helmet decision" was left to their parents.