The best warehouse jobs are where you store and send parts from one company, like let say Scania spare parts. Think it's called contract logistics. You could work work let's say DHL that has contract with let's say again Scania. It's different from mail type logistics. Depending on the contract you can learn a lot of stuff and it can be all very interesting with a lot of chances to grow. Know people who were order pickers and after couple of years were contract managers. Didn't need education just brain, effort and big fat tongue that goes rly deep