[grumbelbart2]

Why not "just use a different machine for banking" etc.

The point is that most people won't do that. Just like with backups, strong passwords, 2FA, hardware tokens etc. Security and safety features must be either strictly enforced or on enabled by default and very simple to use. Otherwise you leave "the masses" vulnerable.

[fragmede]

There's a "Profiles" menu in Chrome to use a different profile. Most people won't. That's fine. I don't deal with them. The people I deal with; my mom has a separate computer that I bought her for banking.