I like large mugs and to be honest I wish at tea time they would use large mugs 😂 but we have to use proper tea cups 😭 because of etiquette (the focus is on the social experience) and tradition (the ritual of tea drinking, rather than the volume of tea consumed).
However, the concept that tea is best enjoyed at certain temperatures, and smaller cups ensure that the tea is consumed before it cools down too much, I think is not accurate when compared to a larger mug because my tea in a large mug stays warmer for much longer.
I should say there are two upsides to a smaller tea cup IMO The opportunity to try different kinds of tea without becoming too full and the aesthetics ♥️