Bootstrap is where Wordpress and jQuery are - &quot;good enough&quot; for a large swathe of problems for a large number of people.<p>js gurus will decry jQuery - &quot;learn to do it by hand&quot;<p>php gurus will decry Wordpress - &quot;it&#x27;s a mess, learn to do it by hand&quot;<p>and ... wow - front-end developers decrying bootstrap - &quot;it&#x27;s a mess, learn to do it by hand&quot;<p>They&#x27;re all not entirely wrong, but the specialist nature of their roles should not be ignored.  Do you have a team of web devs ready to build something that is vital to your business and will be mission critical?  Building on something that&#x27;s not wordpress might be a good choice.<p>Are you trying to squeeze out every ounce of bandwidth performance and CPU optimization?  Yeah, jQuery <i>might</i> not be the best choice.<p>But these libraries&#x2F;products work &quot;good enough&quot; for so many people that it&#x27;ll be a long time before anything dethrones them as the &#x27;go to&#x27; tool for problem X.  There&#x27;s too much of an ecosystem built up around each one.<p>EDIT: I say this as someone who is generally pretty anti-wp, but I still recommend and use it for certain projects, it&#x27;s just not my default go-to for everything.