i have no idea what this has to do with anything...
i was raised tobelieve in Дед Мороз, also in a fact that being cold causes me to catchcold, and other such non-sense, then i grew up and had a chance tore-evaluate my beliefs
:-) As silly as it may sound to you ;-), but it has to do with a lot of things - people's traditions, holidays (i.e. Christmas, etc), definition of marriage, and other things - it's just their values! It may not be yours, and it should not be the same, but people should not be ashamed of their values or believes.
P.S. you can catch a cold from being in a cold temp - cold temp compromizes your immune system. :-)