When designing porcelain sculptures for public interaction or tactile engagement, several critical factors must be addressed to ensure both artistic integrity and functional longevity.

1. Durability and Material Strength: Porcelain, while elegant, can be fragile. Opt for high-fired porcelain or reinforced ceramic blends to withstand frequent handling and environmental stressors like weather or vandalism.

2. Tactile Accessibility: Sculptures should invite touch. Smooth edges, varied textures, and ergonomic forms enhance engagement, especially for visually impaired audiences. Avoid sharp or delicate protrusions that could break easily.

3. Safety and Stability: Secure anchoring is vital to prevent tipping. Weight distribution and non-slip bases are crucial, particularly in high-traffic areas.

4. Maintenance and Cleaning: Public art faces wear and tear. Glaze selections should resist stains and be easy to clean without losing aesthetic appeal.

5. Inclusivity: Design for diverse audiences, including children and individuals with disabilities. Interactive elements like movable parts or sound components can broaden appeal.

By balancing artistry with practicality, porcelain sculptures can become enduring, interactive landmarks that enrich public spaces.