I'd love the option to at least use Touch ID. Facebook is a huge example. I have a long complicated password, and when I switch Messenger accounts, it likes to

I'd love the option to at least use Touch ID. Facebook is a huge example. I have a long complicated password, and when I switch Messenger accounts, it likes to ask for it. Why can't I just use my thumbprint and Touch ID? Same with Barclays. The app wants my password 2/3 of the time, even though I have it set to use Touch ID. I'd at least like the option to use Touch ID/Face ID only.