Do you think people would save more money if spending felt like using physical cash again?

I've noticed something interesting.

Most people focus on earning more money, but many also lose a surprising amount through small, mindless expenses—food delivery, subscriptions, impulse purchases, etc.

I'm curious:

• Do you think overspending is one of the biggest barriers to building wealth?

• What actually helped you spend less?

• Have budgeting apps ever changed your habits, or did you stop using them?

I'm building something around this idea, so I'm trying to understand what people actually need before adding more features. I'm looking for honest opinions, not trying to sell anything.