This is just an incorrect assessment. There's no "adult" or "non-adult" races: Lalafells are just as equipped to look like adults as any other race, countless Lalafell NPCs can be easily recognized as adults and being cute isn't mutually exclusive with that. We have every reason to reject items that reinforce childish connotations.
I can understand it's much harder to give a damn about an issue that doesn't affect you directly, but the least I can ask everyone reading this is to not be the wet blanket.