Yes, absolutely. Studying Creative Writing at university was brilliant because it put me in a situation where I was surrounded by like-minded people. We were all there with similar intentions and with a certain understanding of storytelling. My parents don't really read, and my friends at the time didn't really either, so it was difficult to show them anything because their feedback, while recieved gratefully, was often difficult to listen to as, pretentious as it sounds, they don't really know what they're looking for.
One of the core foundations of my course was that the students critiqued, evaluated and analysed one another, even using other people's stories as the basis for an essay occasionally. Getting feedback from someone who knew what they wanted in a story was an amazing feeling, and really allows you to craft your writing. Of course, opinion is subjective, so not everyone will think the same, but if most people don't like the way you ended chapter three, you might want to think about changing it.
Don't be stubborn. By all means, write for yourself, but if you're planning to publish, it will be out there for the world to see.