Couldn't agree more.
In any case you might want to consider starting a family first and only then switching careers.
I'm trying to avoid platitudes here, but children really do put some things into sharp focus and more often than not that affects your priorities.
Also you discover where your limits are and that they're actually much further than you anticipated.
I see that as a better starting point to do anything challenging really, as you're already managing the hardest challenge.