How does video editing help improve content quality for beginners?

I am a beginner in video editing and trying to understand how editing actually improves the overall quality of content. I know that editing involves cutting clips, adding transitions, and adjusting colors, but I am not sure how these elements make videos more engaging and professional.

I want to learn how video editing helps in improving storytelling, visual appeal, and viewer experience, especially for content on platforms like YouTube and social media. A simple explanation would really help me understand the importance of editing.