Also works for customer service. Have a ridiculously minor issue that really doesn’t matter but still irks a small part of you and you’re too much of a wimp to speak up about? Check your sent folder in the morning after a night of drinking.
Protip: support@company.com.
I think it depends on where you are more than your age. I very rarely carry a wallet on me and I am definitely not Gen Z. That being said, where I live, every legitimate (i.e. non laundering/tax dodging) business accepts paying by phone. I can use public transport by scanning my phone, I can prove my ID by showing my phone, I can claim medical benefits by using my phone, and every franchise has it’s own loyalty app I can download on my phone.