Amazon Prime is a remarkable success but also dystopian. It has made convenience and speed the norm, habituating consumers to buy more products. Prime’s flywheel effect - where more customers lead to more data and scale which attracts more customers - has fueled Amazon’s dominance. Prime subscribers spend twice as much and Amazon’s value has multiplied 97 times since 2005. While canceling Prime may not hurt Amazon, it can benefit local businesses by gaining a new customer. However, Prime has rewired how people think about what is possible to obtain and how fast, making a Prime-free life unimaginable for many.
That is way less common than you seem to think it is. Most online payments are fairly secure.
Last I heard, identity theft and credit card fraud were rampant. Did something change?
Most smaller shops use some well-known third party to handle the payments, and you can tell as you are redirected to their site when it’s time to enter your card details. Some even use Amazon Pay if that’s the only one you trust.