Bnei Yeshivos should not be put down for wanting to go out into the workfield, UNLESS they will not have a set learning seder with a chevrusa everyday! Even then, if they are choosing to not be serious about their learning, no one should shun them, rather they should be helped in a sensative way.
The ideal of all our lives should be to have men learning all day in Beis Medreshim and Koillels. Although every Jew’s ideal should be this, it isn’t practical in our day and age where everything is so expensive. If a Bocher does decide to join the workforce, he should not be put down. rather he should be guided to still lead a Torah lifesytle, and raise his kids in a Torah oriented home, because it is possible.