Why are desk drawers and cupboard doors kept closed unless you are taking something out or putting it away in the laboratory?

Desk drawers and cupboard doors in a laboratory are kept closed to maintain a clean and organized workspace, which reduces the risk of accidents and contamination. Keeping them closed also minimizes distractions and prevents clutter, allowing for better focus on tasks. Additionally, closed storage helps protect sensitive materials and equipment from spills, dust, or unauthorized access.