Those who are not capable of growth in Torah learning but are interested in Secular Studies

 Igros Moshe (YD IV #36.16) Question You ask about how to deal with those who are not capable of growing in Torah either because they lack the intelligence or because of laziness? Answer. Obviously it is not relevant to require them to learn as I wrote that the bnei Torah is required. It would be appropriate to teach them a skill that is most appropriate to their nature. Even if this largely interferes with their Torah learning to prepare them for this work. The Yavetz lists in his siddur those things that a person who can not learn a lot of Torah must be taught. If he is fit for learning engineering or medicine it is appropriate that he learn it as long as he can learn without being taught heresy and in classes without girls. It is best if the program is under rabbinical supervision.