Didn't knew it was THAT high but then again I wasn't surprised that much. It's like the whole "debate" around avocado toast. Many older generations are criticizing millennials for a somewhat expensive treat and they in turn retort that they deserve to to be treated every now and then.
Many complain about not being able to have a stable career, not being able to buy their own house, etc to I think the increased purchases of luxuries go with this. "I really can't afford to invest my money on X coz it's so expensive, why be too stingy on myself, I can afford Y and I'll just buy that".