I always thought bc races were eye wateringly expensive. And to get anywhere means you’re racing twice a week minimum du ing the season so 150 to 200 pcm on entry fees.
Plus transport costs
Plus all the rest.
Notwithsatanding the cost of putting the event on racing in the UK is a very expensive sport.
My experience of racing in Europe was that the event costs were a fraction of bc and it wasn’t unusual to have closed roads esp in local crits.