My suggestion is to have macarons and can only obtain them from
chests. The reason why is because they should be like berries and
vitamins and there should be only a 15% chance to get them from
chests. You can also give a suggestion to this if you want.
we already have berries and vitamins in use here, and there are
already methods for friendship evolution, there's no need to
replace things that are already functioning perfectly fine
Well, to basically sum it all up: there's no reason to implement
this suggestion. We've got everything covered that you've mentioned
these things would do.