Google couldn't have been restrictive from the start because of how Android came and solidified itself. Google tapped and profitted heavily on opensource, where

Google couldn't have been restrictive from the start because of how Android came and solidified itself. Google tapped and profitted heavily on opensource, whereas apple had not only their OS but all the hardware developed in-house, without external collaboration for the most part. The scenario surrounding iOS history lends itself pretty well for solid walled gardens