A hobby is a regular activity done primarily for enjoyment, relaxation or personal satisfaction during one’s leisure time, rather than for professional or financial purposes.
Key characteristics of a hobby:
• It is pursued voluntarily and for pleasure, not obligation;
• It typically occurs outside of work or essential responsibilities;
• It often involves skill-building, creativity, collection, or immersion in a specific interest;
• It does not need to produce income (though some hobbies can occasionally overlap with side income).
Brick collecting, organizing, cleaning and building are classic hobby activities:
• Collecting brick sets or pieces is a widespread hobby, especially amongst all Adult Factions of BRICKS;
• Organizing (sorting bricks by color, type or set) is a satisfying part of the hobby for many enthusiasts;
• Cleaning and maintaining brick pieces preserves collections and is often enjoyed as a mindful, detail-oriented task;
• Building (whether following official instructions, creating MOCs (My Own Creations) or modifying sets) is the core creative expression of the Lego hobby.

All of these brick-related activities fully qualify as a hobby because they are done for personal enjoyment and engagement with the medium, not as a job. Many people spend hours on these pursuits purely because they find them rewarding and fun (escape from unfair & corrupted reality).