I would think that in order for planets to allow life (as we understand per biology, physics etc), the first thing is that the star cannot fry everything nearby, Then the mass of the sun must be the right amount to allow planetary gravity of the right amount. Now then if a star is much more massive, perhaps it being further away from a planet will offset the mass. edit.
But, are there a lot of planets out there like our sun? There are a lot of stars out there similar to our planet.
Edited by Ballyhoo, 25 June 2019 - 05:26 PM.