You're forgetting the installation ("sideloading", what everyone else calls installation) restrictions they are about to deploy. It will be a significant hassle to install anything without Google's approval. Many F-droid apps are showing warning notices about this upcoming change.
Good, it shouldn't be two clicks for elderly people to install trojans on their phone that then drain their bank account. There should be some explicit confirmation that the user knows what they are doing and they are not being scammed. It is long overdue.