Same. I will go to the cashier even when it's somewhat inconvenient to me just because I despise the idea that the grocery store is making me be the cashier for free.
That’s why if something “fails” to scan or you input some produce at a cheaper price “on accident”, then it’s the store’s fault - you’re not a cashier, just a customer doing self-checkout.
Honestly, it's immoral but yeah. I tried scanning something out of my pile of 15 items at Dollarama. It didn't register after I slapped it against the scanner 5 times so I was like whatever. I was too tired to bother so I just put it in the other side. I wasn't trained on how to use it properly.