I understand that photons, like the other elementary particles, is a point particle and doesn't technically have definite boundaries.
However, protons and other baryonic matter have a mean atomic radius, or "charge radius".
But because baryonic matter is made of elementary particles (namely quarks); which means that there is some volume to which quarks are fundamentally confined.
Do other elementary particles, namely photons, have such volumes, albeit vague?
I ask because of my understanding of quantization. If photons have no "volume", then can't an infinite number of photons exist in the same space? Shouldn't there be some area around a photon that it keeps to itself? (Maybe not even necessarily photons, but any elementary particle).