Tattoo artists may have several reasons for not sharing designs before the appointment, which can range from artistic concerns to practical business considerations.

1. Artistic Integrity and Process: Many tattoo artists view the design process as deeply collaborative and iterative. They prefer to work closely with the client in person to finalize the design, ensuring it fits the body's contours and the clients vision. Sharing designs prematurely can disrupt this process.

2. Avoiding Miscommunication: Discussing a design in person allows for clearer communication. It ensures that any questions or concerns can be addressed immediately, and adjustments can be made on the spot, which is often more effective than back-and-forth communication over digital media.

3. Customization and Exclusivity: Artists often create custom designs for each client, ensuring the piece is unique and tailored specifically to them. By not sharing designs beforehand, artists can prevent their custom work from being copied or shared without their consent.

4. Time and Resource Management: Creating a tattoo design takes time and effort. If an artist shares a design in advance, there's a risk of the client requesting multiple revisions which can be time consuming. Artists may prefer to allocate this time to perfecting the design based on in person consultations.

5. Avoiding Cancellations or Changes: When clients see the design too early, they may second guess their decision or seek alterations that significantly deviate from the original concept, leading to cancellations or extensive reworks. By revealing the design at the appointment, artists can manage expectations more effectively and ensure commitment.

6. Intellectual Property Concerns: Artists may be wary of their designs being distributed or used without their permission. By controlling when and how the design is shared, they protect their intellectual property.

7. Building Trust and Experience: The process of seeing and finalizing the tattoo design on the day of the appointment can add to the overall experience, creating a sense of anticipation and trust between the client and artist.