guess what... yesterday I went with my son to the paediatrician (ie another doctor, but with shiny and clean new practice - very "decorous" indeed).
the nurse who drew his blood was also NOT wearing gloves *sigh*
I confess that without the constructive comments which really helped me put this "habit" in perspective I might have jumped at her throat
so THANKS to all who contributed in a positive way to this thread for saving her life
on the other hand, the doctor was
sooo nice and humane. realising that my son was scared about the blood drawing (due to a previous traumatic experience - nothing to do with gloves, though) he was incredibly gentle and funny and patient. result: it went quickly and smoothly and my son was proud of himself and won't ever be scared again.
so I've decided that I will accept this "habit" in whatever practice I land in the future, because, as someone was pointing out, the human aspect is just as important and was completely ignored where we lived before (and where everybody was wearing gloves

)