I'm Lithuanian and I have an early childhood memory of gifting somebody four dandelions for birthday and my parents told me it should be an odd number of flowers for a gift. I don't think I've heard it mentioned since, but it's a thing. I don't think most people would care either way, at worst a florist might have a shifty look if you buy an even number of flowers.

People are sleeping on kotlin and it's a shame. It's the most comfortable language to use for me.