Freedom of religious observance  Most cultures respect the right of adults to practice the religious observances of their choosing and to raise their children within that tradition. The prohibition of blood transfusion is a part of the observances of JWs and is worthy of the respect that might be expected of other religiously motivated decisions.  There are other religious observances that have medical implications, for example the rejection of certain vaccines, but society accepts that it is appropriate for parents to inculcate their children with the values in the practical outworking of their faith [i] .  The refusal to accept blood products may seem reckless to outsiders but there is no suggestion that parents take their decision lightly; it would be difficult to conceive of how they would do so. What then is the alternative? Allowing the state to sanction which religions are acceptable or which practices of those religions? Such an act would strike not only at the freedom of religious practice but at the very principle of freedom of conscience more generally. If the state can challenge these views because it does not like the consequences, then why not social or political opinions? This is the first step on a road to tyranny.  [i] Jennifer Steinhauer. New York Times. Public Health Risk Seen as Parents Reject Vaccines. 21 March 2008.