Car Loans For People With No Credit

When will people just cut up their credit cards,rip the loans on their houses and pay everything with cash?
i feel like if you havent payed it in full at the time of purchase the nits nor REALLY YOURS. why take a loan on a car or a house or boat or use your card for anything when good ole cash:
Charges no interest
its alreayd payed for so no monthly bills
yes cash can be lost and oyu cant always dispute the bills from a stolen card
and PLESE ANSWER THIS FOR ME!:
why are people so comfortable takin out a 30 year Loan On A House not knowing how much of that goes to INTEREST NOT PRINCIPLE. whynot wait 30 years to buy a house and pay it in full knowing that in fact you bought it with no help?
i aint rich either im just not stupid enough to sign up for a credit card and be shocked for soemthing i knew was coming.
Oh to be perfect! You can’t even spell your rant correctly.