The No. 1-ranked player from Northern Ireland is eligible to compete for either Britain or Ireland when golf returns to the Olympics in Rio de Janeiro.
McIlroy says in a BBC documentary that missing the Olympics is "definitely an option" because "I don't want to upset too many people."
McIlroy stirred controversy last year when he said in a British newspaper interview that he felt "more British than Irish." He then posted a letter on Twitter saying he grew up "a proud product of Irish golf" and had not made a decision on the Olympics.