Crate is not just for when you are gone
Crate is a great training tool that is very underrated. It also has a very negative association because people humanize their dogs (e.g. the dog looks sad inside a jail cell) and many use it for the wrong purpose (e.g. time out).
Crate is a great training tool when it is being used properly to nurture a much more balanced mindset.
Many dogs do not respect/trust/ or listen to their human owners because of a lack or misuse of crate training.
Crate training is not just about