This is a good point... I was only discussing with my VET yesterday about how they presented an information leaflet regarding post op procedure, it had a few options on it all at versus prices blood test , flush for anesthetic,.. my point is why isnt it in the price in the first place, if it makes the animal more comfortable just add it to the quote. Her answer amazed me... it went along the lines of... because if we added it in with an option to opt out a lot of people will euthanize rather than pay.
This is surly people who have impulse brought or have no i dear what it takes to look after an animal so choose to put the animal down... This is another reason the RSPCA needs to control this, they explain everything in detail and you sign a contract to say you will look after that animal. ill bet the pet shops do no such thing