How much influence does accent have on a person?

Accent has a greater or lesser influence on a person,

My home is in Chengde, and Mandarin is collected from my hometown, so I don't have an accent, but many of my classmates have accents. Sometimes I really don't understand what they are saying. But I got used to it, and I knew what they were saying and what they were saying. In fact, accent will not have much influence on a person, and every place has its own characteristics.

I think the accent is good, too. Some people have funny accents.