Visiting my parents for Christmas, I helped my mom set up her new win10 laptop. (and she&#x27;s real good with computers for someone her age whose job wasn&#x27;t in IT)<p>Lesson here for anyone wanting to use emails for usernames:<p>Make it <i>really</i> clear that you&#x27;re asking for the email as an ID, as the username. Otherwise this <i>will</i> incline people to enter the same password as their email because they think they&#x27;re asked to log in. <i>Even</i> if they know it&#x27;s important not to re-use passwords over different logins.<p>To make this anecdata N&gt;1, I teach computer stuff to kids (ages 8-12, generally) and they tend to make the same mistake.<p>(working on semi-public computers, I am glad I get to teach them about Private Windows: &quot;if it&#x27;s not your computer, only enter your password on a window that shows the little mask&#x2F;sunglasses-guy&quot;)