Translation:I have never shaved, I am only ten years old.
This is incorrect punctuation, in English at least. There needs to be a coordinating conjunction or transitional expression between two independent clauses to use a comma. Alternativelty, the comma could be changed to a semicolon or the start of a new sentence. It should be changed to "...shaved, for I am..." or "...shaved; I am..." or "...shaved. I am..."
Whereas in many languages words like "shave, wash, dress" are reflexive, this is not the case in English. Normally we simply "shave".
The only scenario where your suggestion would work is if someone has a servant to shave him, or goes to the barber every day, like in Western movies. But the rest of us just "shave".