Ideally, I agree 100% with this. Realistically, this might not always work. I don’t have a family, but I know if I did, I’d want to leave as many bridges open as possible to avoid finding myself stuck in a situation where I would not be able to provide for them.
However, the overall message would still apply in that situation: Don’t be complacent. If you find yourself going back over one of those bridges in a desperate attempt to keep your income stream going, it should be temporary, and you should still spend as much time and effort as possible getting out of there. Otherwise, your unhappiness builds until it reaches toxic levels. But in the meantime, that bridge helped ensure your family, who relies on you, is safe and secure.