In an ideal world, I fully agree with you. It's already the case that bikes are permitted everywhere, so let's just enforce that. However, it's already the case

In an ideal world, I fully agree with you. It's already the case that bikes are permitted everywhere, so let's just enforce that. However, it's already the case that bikes are allowed everywhere and drivers are still aggressive. If printing some text on roads improves safety, I value that more than what ought to be.