I would note there are some known health hazards in handling thermal-paper receipts(BPA/BPS)[1] with your bare hands if you do so often. I don't know much beyond this, I would look into it.
[1] https://www.pca.state.mn.us/business-with-us/bpa-and-bps-in-...
Secondly, IME thermal print can fade to nothing after 1-10 years. So these are specifically for short-ish-term use. Not for labeling something that is supposed to last a long time.
These non-poisonous blue receipts have the added benefit of being able to be marked with a fingernail, which is nifty if you're using them to print your shopping list, crossing things off is very satisfying.
They are used in kitchens where thermal paper obviously won't work. Other advantages are they can usually print two colours: black and red. And the sound is rather satisfying :-)