>>30467355No. You have to understand Lele's perspective. She's a butterfly.
There are species of butterflies/moths that don't have any way to eat. The adults live long enough to reproduce and lay eggs, and then they die. They're essentially just vehicles for shuttling genetic material around--the "life" of the creature primarily takes place in its larval form. As an embodiment of the butterfly, Lele would be aware of this.
As one of the Tapus, Lele would also be generally aware of goings-on around Alola, including the particulars of the Island Challenge and the trials. And the fact that trial captains have to stop being captains after the age of 20. When they become adults.
Finally, Lele would be aware that she had chosen previous kahunas, all of whom ended up dying eventually. Kahunas dying is a nuisance and means that she has to pick new ones.
In her mind, she's made the connection that Olivia is now an adult, and that adults have sex and then die. She's keeping Olivia as a virgin because she thinks that will keep her alive forever, meaning that Lele won't have to bother picking another kahuna.