How to fix VM issue with minikube start ?
Figured out the issue. VirtualBox was not installed correctly as Mac had blocked it. It wasn't obvious at first.
Restarting won't work if VirtualBox isn't installed correctly.
System Preferences -> Security & Privacy -> Allow -> Then allow the software corporation (in this case Oracle)
Restart
Now it worked as expected.
Have you tried restarting your computer after installing the VirtualBox ?(seems to be also a known bug to docker-machine which is used by minikube to initialize you local env)
This definitely worked for me, starting minikube by specifying vm-driver and kubernetes-version
minikube start --vm-driver=hyperkit --kubernetes-version v1.16.0