Some Sikhs have replaced the Langar on the floor system with the table and chairs system. They say it is modern times and we should move on. But this new system gets rid of the
humility and
humbleness aspects of the traditional langar system. Humility is a key teaching of Sri Guru Granth Sahib Ji. The tables and chairs system
violates Sikh ethics and principles. However a few tables and chairs for the people who are unable to sit on floor due to medical reasons, is understandable and accepted by all gurdwaras.
The above picture shows the traditional langar system, the Principles of Humility and humbleness can be seen in practice in this system.
The New Langar System, the Prinicples of Humility and humbleness are violated in this system. It is more of a restaurant atmosphere.
Conclusion: With tables and chairs the elements of humbleness and humility in the langar system are lost. Only by acting in a humble manner and showing humility is our ego destroyed. Ego keeps our soul, separated from the lord.