Here's why:
* Pronouns usually come after the noun they refer to: The correct order is "Name + Pronoun," not "Pronoun + Name." For example: "Sarah is here" instead of "She Sarah is here."
* It sounds awkward and grammatically incorrect: While some people might use it in informal settings, it's not standard English usage.
Exceptions:
* Emphasis: You might use "she" before a name for emphasis, but this is uncommon and should be used carefully. For example, "She, Mary, is the one who knows."
* Poetic License: In poetry or creative writing, grammatical rules are sometimes bent for effect, and "she" before a name might be used to create a specific rhythm or sound.
In general, it's best to use the standard "Name + Pronoun" order for clear and proper grammar.