I've noticed that the Tails and other privacy focused tools go to great lengths to look the same as other users. And as far as my understanding goes, this is so

I've noticed that the Tails and other privacy focused tools go to great lengths to look the same as other users. And as far as my understanding goes, this is somewhat tricky with things like canvas fingerprinting. Is there a reason why they want to look the same? Could the same result be achieved as looking unique every time? e.g. Instead of attempting to make every canvas fingerprint the same, instead make every fingerprint unique by introducing noise.