No, “modern” does not mean “in the last 30 years,” but credit cards have evolved extensively in that time.
Without contemporary (vs modern ) credit cards you don’t have airbnb, you don’t have online airline booking, you are not putting things on your visa in other states much less other countries. Credit cards have changed a LOT.
If you think debt is the main way credit cards enable travel you are missing a ton. But the fact is that is a key function too, regardless of whether you approve. Most of the country and world are not living as comfortably as folks on this board.
Appreciate what we have instead of dismissing a whole industry as useless. It seems useless until it goes away, sort of like the police, competent politicians, etc etc.
I’m a passive investor too but there needs to be some ACTIVity happening for those index funds to make money. Startups, restaurants, hair salons, housing developments, and factories don’t get any money without expensive humans you dismiss as useless making decisions in the field of financial services and economics.