Perhaps you don’t know this, but it is usually far better for the merchant if you pay by entering your PIN instead of signing for a purchase. Debit card charges to the merchant are lower than credit card charges to the merchant and the same for you.
So, now you know why Wells Fargo (and probably other banks) are trying to sign you up for things like the "Exclusive Rewards" Program which only earns points for you when you pay the credit way.
Don’t make small businesses bend over for you to get your stupid Starbucks latte reward for every $2600 you charge.
Support local business and say "Debit" when they ask how you want to pay or better yet just give ’em cash.