Commentary for Kiddushin 60:14
מאי בינייהו איכא בינייהו דאגמריה עיסקא
What is the reason? - His life may depend on it. R'Judah said: He who does not teach him a craft teaches him brigandage. "Brigandage"! can you think so? - But it is like teaching him brigandage'. Wherein do they differ? - They differ where he teaches him business.<span class="x" onmousemove="('comment',' The first Tanna, though mentioning a craft, merely desires a means of livelihood, and includes business too. But R. Judah's emphasis on a craft shews that he does not consider business sufficient. - In a country living by agriculture and industry R. Judah thought commerce too precarious. V. Krauss, T.A. 250-252 on trade. He makes the interesting point (p. 252) that whilst reference is frequently made to a po'el batel kyc kgup , an unemployed landworker, one never hears of an unemployed artisan.');"><sup>31</sup></span>
Daf Shevui to Kiddushin
According to the other opinion in the mishnah, as long as he teaches him a way to make money, he has fulfilled his obligation.