There has been much discussion recently about the possibility of cyclists having to display registration numbers, to pay Road Tax, Insurance etc. This is in order to monitor their transgressions (cycling gaily through red lights, whizzing along on the pavements and so on.)
I don't much mind if they wear Lycra, fur coats or tankinis (!) but when driving my Fiesta I'm very wary of safeguarding them when overtaking a long line of the idiots, two abreast, wobbling about in the middle of a lane etc.
So many times they totally ignore traffic lights, and it's so dangerous.
I used to love my robust, trundly Raleigh bike when I was in my early teens. I called it 'Lucky'. It had a shamrock logo on the bell, and we children used to whizz about everywhere. But there were no cars on the roads then - I knew no family who owned a car! (early Fifties).