Another factor is that modern cars encourage a lack of participation .... ABS, traction control , lane keeping, auto braking .... combined with ever increasing infotainment screens distance the driver from the driving .... as do the levels of ride and sound proofing .... seems that many drivers waft along only partly aware they're actually in charge of a ton or two of metal travelling at speed.... none of the above help if you pull out of a junction in front of a biker unfortunately.