PS, your replies sound as if we didn't (mostly) agree, but we do. I'm just being devil's advocate to show how biased we can be if we don't watch out.
I slightly differ on the motives behind many (i didn't say 'all', or 'most') blood transfusions. Health care, especialy here in the US is business. Yes, I think too often doctors just prescribe transfusions without solid reasons.
What you say is truth about most procedures going wrong in some cases. Even vaccines under fire these days. But agreed thet we cannot just stop getting health care because of the risks.
As for choices should be individual, not imposed, i already said I agree. However if an INDIVIDUAL wants to decide based on scripture, or doctrine or on a dream he had last night, that his/her choice. No one should interfere. IF JW's want to teach their interpretation of the bible, and some people buy it, and make an individual choice, that's fine. The problem is enforcing punishment for those who don't agree.
As an example: Amish don't get vaccines. I disagree, but thet's heir choice.