Read the following article and answer the question.

This weekend was the first time I ever saw someone djing a party without using headphones . My immediate reaction was " oh how fun " , which I am still suprised about . I tend to be a grump about all things dj related since I am " no longer in that game " and/or stereotypically jaded . When I saw the whole software based djing w/o headphones in action though , I could n't help but think of it sort of like a fun video game that all your friends could dance to .

What may be the reason for them being out of the game ?
They do n't have time for it .