1. Language: I'd be moving somewhere where the primary language is unknown to me (although I studied german for a while in school).
2. Convenience and support structure: I have young children and their grandparents live 5-15 minutes away.
3. I have a vote here and therefore a sliver of a say. If I go elsewhere, all I'll have is my voice, which will be the voice of a foreigner.
My wife and I have resolved to leave, but not before our parents pass away. Its our one and likely only major blocker. In fact I shifted to working fully remotely during the pandemic to make this eventuality smoother.