Since Covid, I hardly ever have cash on me, but recently someone said something that made me think. I was drinking with a friend who has always done bar work, and we were discussing this very topic ( nobody has cash). He said he always has a little cash so he can tip in cash as he doesn't trust tipping via a card to reach the intended destination (and it's taxed).
I like this idea, and now carry a little cash for just that purpose,for everything else I use a debit card
Fair point, it is useful for tips!