What should I consider before selling my MacBook?

Before you do so, please take a look at the following article so you can prepare your Mac to sell, and whoever buys your Mac can have it ready for them correctly. ⇢

What to do before you sell, give away, trade in, or recycle your Mac - Apple Support

+1

User @ Zachyy is absolutely correct. If you do not follow the guidance in the link they provided, then the new owner will be unable to properly set up and customize the computer for their own use. It would become for them an expensive door stop.

👍