If your photo is your current style, you have a nice dark shadow. Looks good. very trim. I'm sure it's easy to shampoo. Easy to dry off. Never blows out of place in the wind. Does not show a hat ring. Does not need hair gel or spray, etc.
Lots of good reasons for a low maintenance buzz zero haircut.
Has it been 30 days yet? If no, people are still getting used to it.
When I look at pictures of people from other parts of Africa, seems there are a lot of guys with buzzed or shaved heads. Don't know about Tunisia, but would think it would be common there, too.
If you like it, I'd stick with it ... unless your parents are giving you major grief over it. Hair is not worth that battle. You can always come back to a shaved head later.