I used them a lot to run on older phones for the kids. This was one huge advantage, once google and phone manufacturers stop updating the OS on a particular pho

I used them a lot to run on older phones for the kids. This was one huge advantage, once google and phone manufacturers stop updating the OS on a particular phone, you could still run a modern version of Android on them. If there are no alternative OSes, the fact that most of Android doesn't really matter any more.