no, cyclists should not stick to the left because morons like you open their doors and kill them. You should have waited behind both riders until the traffic light as your van is very slow and a bike is faster than you. Perhaps you could post a video of you riding a bike on the doorzone and how well you are after ploughing straight into a stationary object at 20 mph?
Windows 8 Build 7963 • Billy O'Reilly • 12 Feb 2022