Same here. I put “See ID” on the back of mine and those who look always ask.
I don’t think it’s a matter of store policies, I think that some of the cashiers just get lazy and make assumptions that the card is yours.
There's also a liability issue that they don't want to close to.
When I read this, I wondered why they never asked to see mine. Then little ole me realized I never use a card! LOL.