On the topic of Chakra Fruit...
...why is it Otsutsuki protocol to harvest Chakra Pills/Philosopher's Stones from God Trees instead of just eating their fruit directly? I mean, when Kaguya ate the fruit, she became immortal and permanently acquired godlike power. Yet Momoshiki and Kinshiki were content to collect pills that, when eaten, grant temporary power boosts and marginally extend their lifespans.
Why?