Giving someone I don't know well mouth-to-mouth ventilation has never appealed to me and so I was relieved to read in a news article that a Japanese study says this method of resuscitation is off-putting and unnecessary. The researchers say that chest compressions are just as good if not better. But the British Heart Foundation disagrees.
For many people the "yuk factor" in mouth-to-mouth breathing outweighs any altruistic considerations. That is, unfortunately, the case for me.