@Meandflower JWs seek to follow and obey God's standards of righteousness, as it is outlined in scripture.
They do not worship God based on emotions.
For example, they recognize prayer to be respectful communication with God, and because they love God, they pray to him, and no other God.
So they do not consider these things as menial.
Like Daniel, and the three Hebrew boys, they would not seek to preserve their lives, by compromising their stand for what God says is right.
The reason JWs do not take blood transfusions has to do with what God says about it.
(Genesis 9:3, 4)
3 Every moving animal that is alive may serve as food for you. Just as I gave you the green vegetation, I give them all to you.
4 Only flesh with its life—its blood—you must not eat.
(Deuteronomy 12:16) But you must not eat the blood; you should pour it out on the ground like water.
(Leviticus 17:10-14)
10 “‘If any man of the house of Israel or any foreigner who is residing in your midst eats any sort of blood, I will certainly set my face against the one who is eating the blood, and I will cut him off from among his people.
11 For the life of the flesh is in the blood, and I myself have given it on the altar for you to make atonement for yourselves, because it is the blood that makes atonement by means of the life in it.
12 That is why I have said to the Israelites: “None of you should eat blood, and no foreigner who is residing in your midst should eat blood.”
13 “‘If one of the Israelites or some foreigner who is residing in your midst is hunting and catches a wild animal or a bird that may be eaten, he must pour its blood out and cover it with dust.
14 For the life of every sort of flesh is its blood, because the life is in it. Consequently, I said to the Israelites: “You must not eat the blood of any sort of flesh because the life of every sort of flesh is its blood. Anyone eating it will be cut off.”
From these verses, we see that blood represents life, and it is sacred to God - that is, set apart for sacred use.
Life is sacred.
Thus God specified blood has one use - to atone for sin. Thus it should not be eaten, but is to be poured out in the dust, and covered.
There was no other use, God allowed for.
Thus, the command in Acts 15, to abstain from blood, takes that principle into consideration - blood represents life, and is sacred to Jehovah - set apart for only one use.
JWs respect that.
They do not allow emotion to drive them.
Independent Lens . KNOCKING . Jehovah's Witnesses . Blood Beliefs | PBS
PeaceHealth Southwest addresses those who refuse blood transfusions
Why Don’t Jehovah’s Witnesses Accept Blood Transfusions?
Feel free to ask any questions.