I think education & training and an awareness of the vulnerabilities of cyclists has a much to do with improving cyclist safety as an arbitrary gap that can't be policed and won't be enforced. And yes, regular formal bike checks would be good as I said already.And impose a minimum age limit of 18 on cyclists.
And subject all bicycles to an annual NCT
With respect, we haven't got the faintest idea as to whether my proposals will encourage or discourage new cyclists or have any influence on the number of cars on the road. I believe that instilling a sense of ownership in their operating environment and in formal training will improve cyclist safety. Demanding more with zero material contribution and no commitment to improving riding standards or cyclist education rings very hollow and just heightens the sense of entitlement cyclists seem to me to display.The problem with this approach is that you will deter people from cycling. So you will end up with many more cars on the road. So it will be worse for motorists, rather than better.
If you encourage cyclists, it will be good for both cyclists and motorists.
Will we do better by having the "mind the gap" police transferred from the London Underground of my yoof to Dublin's streets, brandishing 4.91 foot long poles threateningly at motorists?