Edit: You would have to think from the other side, if it were more of an advantage to have those 100 shares at a certain strike price, and pay the for the option contract, then you'd probably get assigned.
Yes, you can buy and sell options just like stocks without trading in the stocks itself. In your case, you can sell your profitable call options before expiration using the SELL TO CLOSE order anytime without worrying about delivering the stocks at all.
You can sell options before expiry, in fact most people do. That's why they are called 'traded' options.
because if I sell call option I become writer of the options & may have an obligation to deliver the stocks.
Suppose I purchase 1 contract(100 shares) of shares trading @ $100, trading @ a premium of 20 cents, in anticipation of it going to $105. But as the expiry nears the option trades @ $2, hence can I sell call option without worrying about delivering the stocks,
