I see Indians (both types actually) regularly but the Sari wearing ones are usually the elderly Mom/Grandmas and not the 'Kids' (20's, 30's). The exception is very recent immigrants but that does not last.
From perusing different threads here it appears (Food for Thought) that Scot 'youngers' still wear a kilt occasionally for no real special event....unless, by that survey, there are numerous Scots special events.