Kids are 1 and 4. That is tough, but they won't be that young forever. Can she scale back to working as an occasional sub for a few years, and then go back into

Kids are 1 and 4. That is tough, but they won't be that young forever. Can she scale back to working as an occasional sub for a few years, and then go back into full time teaching down the road when the kids are much older? Sounds like she loves teaching. Even in a high COL area that should be doable for a few years possibly? Unless you are in the bay area.