Property debt is different than medical, education,....Even if true these are not the same as paying for someone else's debts. I'd like my mortgage to be paid in that case.
Paying off people's property debt would allow for more spending however it benefits mostly the property owner who can sell that property and pocket full profit.
Whereas education, the goal is the education received would go back to providing services to society such as someone going to law school becoming a lawyer or a law professor, someone going to business school opening a business which thus open up more job opportunities. Paying off that school debt allows them a great focus on financing other opportunities to better themselves such as purchasing an house, opening a business, saving for a pandemic at a younger age making them less reliant on Social Security and other government programs at an older age.
While I'm sure your tuition was lower than it is now...imagine where you would be, how much further you would be if you didn't have to deal with student debt.
Medical debt is the biggest cause of bankruptcy in the states which is why subsidized healthcare is important (last stat i saw said 66.5% of all bankruptcies in America stem from medical debt). That can happen to any and actually can deter everyone. Which is why it should be forgiven.
High tide rises all ships. By pushing everyone up, wealth inequality goes down. When the levels of inequality of wealth go down, stats have suggested crime goes down. If crime goes down, law enforcement budgets go down (savings). Poverty goes down (savings as less money), less wealth inequality means the poor neighborhood finally gets influx of local money and not reliant on state/feds (savings), and so on and so on.
Also VA healthcare/military GI Bill/Tuition Assistance become not necessary so those are also huge savings in the defense budget right there because it would already by provided by the government.