Please explain about Unity 3D and C#?

Question

Unity

Hello.
A thousand questions have already been asked about learning C # and Unity 3D and even more answers have been received.
Still, I had my own questions :)
In programming, absolute zero
. There is a Mac on it Unity 3D.
1) Learning Unity 3D using the tutorial on the Unity site
Is this site sufficient for learning to start making projects?
2) A little later I want to use Xamarin and C # is also needed there.
Is it possible to practice in the same Unity by diving into books on learning C #? Since there is no Visual Studio on the Mac, and I don’t want to install a virtual machine

Answer 1

1. Enough.
2. Maybe.