You can shim a surprising number of them with a cut up soda can. If you’ve got the time, lockpicks are pretty easy to buy and a novice can pick most locks in less than an hour with a “raking” technique.
If you can’t defeat the lock, attack the mount. A lot of doors/drawers/cabinets use thin punched steel, or mild steel for the hasp/lock point. You can get through those in a few minutes with files, saws, pliers, etc.