Is it okay if we wear socks in the Gurudwara sahib?

There is no specific mention in Guru Granth Sahib about removing the shoes or wearing socks in the Gurdwara Sahib.
However to keep the environment clean this practice is going on. Not only removing the shoes even one has to wash the hands and feet so that any dirt and contamination does not spread. The removing of socks is optional at many places depending upon the climate and local administration.
Even when one enters in the special laboratory or computer room one removes his shoes for controlling the dust and contamination.
ਬਾਬਾ ਹੋਰੁ ਖਾਣਾ ਖੁਸੀ ਖੁਆਰੁ ਜਿਤੁ ਖਾਧੈ ਤਨੁ ਪੀੜੀਐ ਮਨ ਮਹਿ ਚਲਹਿ ਵਿਕਾਰ ॥੧॥ ਰਹਾਉ ॥ – 16
The purpose of going to Gurdwara Sahib is to learn, understand and follow Gurbani written in Guru Granth Sahib. The understanding of the Hukam of Akal Purkh will help us to lead a successful life. Whenever, we go to Gurdwara Sahib, We should ask ourselves as what enlightenment we have received.
ਗੁਰੂ ਦੁਆਰੈ ਹੋਇ ਸੋਝੀ ਪਾਇਸੀ ॥ ਏਤੁ ਦੁਆਰੈ ਧੋਇ ਹਛਾ ਹੋਇਸੀ ॥
Better to note down the points for the clarity and future guidance. However, if we are coming back empty handed, then fault either lies with us or there is something wrong with the programs being conducted.
Gurmat teaches us to get up early in the morning and understand the qualities of Akal Purkh with the help Gurbani written in Guru Granth Sahib.
ਅੰਮ੍ਰਿਤ ਵੇਲਾ ਸਚੁ ਨਾਉ ਵਡਿਆਈ ਵੀਚਾਰੁ ॥ Jap – 2