Yes you're more than welcome to use "mature" tools that haven't changed in a while. But if you spend a lot of time in the Frontend then it becomes fairly obvio

Yes you're more than welcome to use "mature" tools that haven't changed in a while. But if you spend a lot of time in the Frontend then it becomes fairly obvious about switching to new tools and frameworks. Builds tools are starting with better defaults, react is making it much easier to build intricate UIs without complexity.