Birth-Day

Well, I was thinking internally, why no-one asked such question. Glad.

Instead of my view (could be biased), let's go by literal meaning. "Celebration", by definition an act of creating an excitement by one or multiple individual(s), upon an accomplishment. An "obvious event" is not celebrated, but an accomplishment / achievement is celebrated. Accomplishment is again perceptional (relative), there fore we can choose to qualify an achievement with an effort that attained newer state as outcome.

Coming back to your question, many things can be celebrated. But I think, I have already answered. Let me re-iterate the same examples,

1. A birth date is celebrated by the mother (once), who gave birth to the baby (effort involved). Not by the baby, who celebrates annually, just because the countable event has occurred. Annual birth day would anyway an obvious event whether you accomplish something or not.

2. A photographer celebrates a great photo (effort involved), not when the guy buys an expensive camera.

3. An Ag. Vice chanceller is felicitated, when he/she creates positive change farmers' life (the beneficiary) with all his tools/powers and/or positively impacts the GDP through Agricultural sector.

Most times, we get carried away by tools. Not the outcome. Or we urgently celebrate the milestones, without confirming or considering the accomplishment. If we were to celebrate an obvious event like birth day, we should actually celebrate taking bath every day, which is also an event.