A mother, who followed her daughter to the Gold Coast for Schoolies Week, is now supporting her son who is "filled with remorse" after a friend was allegedly assaulted over "religious words".

Jake Kelly, 18, has emerged from an induced coma at the Gold Coast University Hospital after he was allegedly punched and spat on while taking part in end-of-high-school celebrations in the Cavill Avenue Mall about 12.05am on Friday.

Youth worker Kathy Conley, who followed her daughter to Schoolies Week to ensure her safety, said her son was involved in the incident.

"I'm going to get a bit emotional. But... He... He had words with another group of boys over being, just religious words, and an innocent friend was [allegedly] king-hit and had been put in a coma," she told Channel 10 show The Project.