Both are important one cannot help himself or this society without education. And food is necessity of human being. No human can survive without food.
So both are equally important for mental as well as physical growth.
since the beginning of time, there has been educated people and there has been uneducated people. One study from Harvard shows the overall life expectancy of an educated person is 5-6 years longer than an uneducated person. on the other hand, since the beginning of time starvation and malnutrition has killed more people than any plague. You don't need a study to know the life expectancy of those who are in danger of starveling is far less than one who is well fed. Realistically speaking, both are necessary and it should not be an "either or" thing.
The langar was started by guru sahib for those people who come to visit from far away, those who are poor and unable to get food and those who work there. now a days particularly in Delhi those who come to eat free langar are those who work and earn living. majority of them are those people, but there are a few poor people also who do come and eat and they deserve it. all those who earn living and come and eat at gurdwaras in Delhi come back to kill sikhs and burn gurdwaras. They do not even come to matha teken in front of SGGS. they just come straight to langar eat and go. Is it justifying ( NO). it should be stopped for that kind of people. There should be a system set . there should be sewadars standing by the side of Sggs with tickets or stamps. Those bow down in front of sggs they should be3 given tickets and then when they go to langar hall they should be served. those who come straight to langar hall just to eat and with out stamp should not be served. they should be stopped at the entrance. It is better to spend such money for education. thank u all