Material has the same issues as any flat design. It doesn&#x27;t provide affordances[1]. If something is just a rectangle, you don&#x27;t know whether it&#x27;s button or not. Sometimes, things look like text but are actually clickable.<p>There&#x27;s a Google app (I can&#x27;t remember which) where a text-entry box is the same color as the top bar. So you just see the red top bar, and then an arrow that indicates &quot;go back&quot;. That&#x27;s it. If you tap the top bar, suddenly a cursor appears, and you realize you can enter text. I constantly find myself confused in Google apps because of that exact issue.<p>Problems with flat (and Material) design have been written about extensively[2][3][4]. Recently, there was even a study showing that young people are more confused by UIs than they used to be because of flat design. It takes them longer to figure out where to click.<p>1. <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Affordance#As_perceived_action_possibilities" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Affordance#As_perceived_action...</a><p>2. <a href="https:&#x2F;&#x2F;www.nngroup.com&#x2F;articles&#x2F;clickable-elements&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.nngroup.com&#x2F;articles&#x2F;clickable-elements&#x2F;</a><p>3. <a href="https:&#x2F;&#x2F;medium.com&#x2F;tech-in-asia&#x2F;material-design-why-the-floating-action-button-is-bad-ux-design-acd5b32c5ef" rel="nofollow">https:&#x2F;&#x2F;medium.com&#x2F;tech-in-asia&#x2F;material-design-why-the-floa...</a><p>4. <a href="http:&#x2F;&#x2F;www.matthewmooredesign.com&#x2F;almost-flat-design&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.matthewmooredesign.com&#x2F;almost-flat-design&#x2F;</a>