people who are these children you are describing SHOULD all stay by Safari and never download a browser app...
other adults may still want to stay by Safari
some people will just use Gecko or Chromium based browsers, as far as I know Chromium and Brave are totally open source :)
I would not recommend chinese or russian developed browsers but heck is America not a free country?
iSpyBestBrowser shall apple users download, I do not think anybody would blame Apple if their iPhones get compromised
hold back your long protective arms and concentrate on: 1. Safari security, providing a secure Apple-Level security choice 2. You may want to prompt users and tell them who owns the company and who develops the browser they are trying to download and what could happen if...
I mean do you really think somebody has to fear Microsoft Edge or Google Chrome?