Material Design – Form Tabbing on "Switch" checkbox?

I have a form that a user typically uses tab index to navigate throughout. I've updated most of the forms from standard checkboxes to "switches" with either a yes/no.

label changed for IP...

With Material Design I haven't been able to find information on "tabbing" and was wondering:

Should a user be able to tab over the inputs and change their state, or explicitly have to click to change the state?