Third party dependencies are generally toxic to the long term health of your application. So I push back hard against adding new frameworks or libraries unless

Third party dependencies are generally toxic to the long term health of your application. So I push back hard against adding new frameworks or libraries unless they really carry their weight. But if someone wants to use a new language feature we don't use often, or try out a new pattern I try and give it a chance. If you shut down everything you're not giving your people room to grow their skills, and they'll move on.