As a relatively recent convert to cycling but a long term driver I am surprised at a lot of the decision making I see while out on my bikes. I think that the majority of people do make an effort not squeeze (or just mow down) cyclists. Some are more positive than others, I get nervous when someone sits just behind my rear wheel revving away waiting for their chance to get by but at least they havn't just gone past regardless of the space available, a few do. A key component of sensible driving is observation and many drivers do not match their speed and distance; a cyclist suddenly appears in front of them and they cannot process the information quickly enough. They could slow down, they could stop but some just keep going, if something is coming the other way they just squeeze the cyclist. I can't see it changing. Perhaps if there were proper punishments for injuring/killing cyclists it might change peoples mentality, but then again perhaps not.
1938 RO Harrison Super Circuit, 1949 FH Grubb Cote D'Azur, 1949 RRA, 1949 Paris tdf, 1950 FH Grubb Sprint Omnium, 1950 Olmo, 1951 FH Grubb Perfection, 1951 Rotrax Concours, 1951 Gillott Taper Spearpoint, 1952 Macleans Apollo, I952 RRA, 1952 Gillott FDL, 1952 CB AllRounder, 1953 Freddie Grubb Perfection, 1955 Condor No1, 1956 Condor fb, 1957 Mercian(Dave Keelers), 1957 CB Olympic Sprint, 1959 RA Blackwell, 1961 Rory O'Brien, 1961 Cinelli SC, 1962 Holdsworth Italia, 1963 WBH, 1967 Mal Rees Rameles, 1972 WBH, 1978 Speedwell, 1984 Mercian Tourer.