UJM: bad analogy. It is a very good question and I have asked this for years. The question is stronger on lag baomer which is really a quasi yom tov. On a regular yom tov there is an inyan of “chatzi lachem” and simcha. There is no such inyan on lag baomer or chanuka.
What is especially bafling on lag baomer is that we don’t just give off but we go play baseball (at least that is what they did in my day).