There's back-end developers who doesn't know front, but the pattern and it's docs facilitate to create an easy and fast platform. Not every site need to be unique, some sites are a basic CRUD to manage information to whenever he needs.
And bootstrap has a pretty good example that can teach a lot of developers.
I've used bootstrap a lot, and learn a lot also. New front-end developers can learn a lot with bootstrap.
A lot of people care.
There's back-end developers who doesn't know front, but the pattern and it's docs facilitate to create an easy and fast platform. Not every site need to be unique, some sites are a basic CRUD to manage information to whenever he needs.
And bootstrap has a pretty good example that can teach a lot of developers.
I've used bootstrap a lot, and learn a lot also. New front-end developers can learn a lot with bootstrap.