Does macOS Sierra do mac address randomisation? I know that iOS does it Does macOS Sierra do mac address randomisation?
I ask if because wonder if I need to run SpoofMAC when in hotel or foreigns hotspots (mobile MacBook Air)

brew install spoof-mac
spoof-mac list
sudo brew services start spoof-mac
sudo spoof-mac randomize en0
Natively, no, but you can change the MAC address yourself.  I think it reverts upon reboot though.

The command is sudo ifconfig &lt;interface&gt; ether &lt;new mac address&gt;

For example, sudo ifconfig en0 ether 12:34:56:12:34:56

You may need to toggle the interface as well sudo ifconfig en0 down and up

As per this site (https://blog.macsales.com/37428-tech-tip-finding-and-changing-your-mac-address-in-os-x) you can make a random MAC like this 

openssl rand -hex 6 | sed 's/\(..\)/\1:/g; s/.$//'