Health, there would not BE such a necessity if they would be machshiv providing for their families at least to some degree. As much as you would like to see an idealized lifestyle where men can sit and learn to their heart’s content, the reality is that THEY are responsible to provide for their wives and children according to the Torah that they are sitting and learning.
The Jewish community at large has responsibilities first and foremost to our own families. That boy in Kollel is no better than another frum Yid who learns AND works, but many people today seem to have bought into the myth that because he is sitting and learning he IS better. I have even more respect for someone who does both, because it is that much harder to do both things well.
My father O”H was a great talmid chochom who regularly gave shiurim and droshos and made time to learn every spare minute he had, on a daily basis. He also was in a healing profession and gave of his services freely to those who could not afford them and had no insurance. So don’t talk to me of “the likes of” me. You have no idea what I support and whose Torah learning I help to facilitate, or what Yeshivos I give my maaser to.