You have to shave lighter. Once you get used to it, they work incredibly well.
With a 3-5 mini razor Mach something, you can push pretty hard before you cut yourself.
Safety razors it’s much lighter touch but it still shaves very close. I bought one of these 10 years ago and it’s still going strong. Safety razors are cheap to buy and once you get used to it, works just as well if not better.
Cost! The cheap disposable blades are horrible to shave with. The good ones are crazy expensive.
Good quality safety razors are cheap! I bought a pack of blades and it’s lasted me literally years. It probably cost me $10-15 too.