DD has an after-school nanny and a swimming teacher that she adores, both relatively long-standing and who she sees weekly, so she’d like to give them a Christmas gift. They’re both around early uni age so I was thinking of giving cash in a homemade card for Christmas but - stupid question incoming - do young adults still use cash, as in actual notes, in today’s relatively cashless society, or would it be the equivalent of handing over a pager instead of a smart phone?