In each option transaction, the amount paid by the buyer to the seller is referred to as the premium, which is the source of income for option writers. (investopedia.com)
Anyone option writer receives a premium (extra yield), but must sell his investment if it goes into the money. (alephblog.com)
This is simply a function of option writers seeking to maximize the amount of premium they receive for assuming the limited profit potential and excessive risk of writing the option in the first place. (investopedia.com)