Comment by gumby271

I'm not saying it's impossible, I'm saying there's a barrier that's useful to further vendor lock in. My mom is going to use Apple passwords on her iPhone. When she needs a new phone, the complexity of import/export and fear of losing access to her accounts is going to push her to buying another iPhone. It's just another avenue of lock in, like existing OS level password managers, just with an extra level of confusion for the end user.