People ask what we like as if it were an order in a restaurant, and they expect a quick answer. Many of us do not have one, not out of indifference, but because there was never time to find out without an audience. Discovering something about your own body while someone waits is close to impossible.
Desire is not a talent you are born with. It is a practice of attention, and attention is the first thing cut when there is work, family, a phone and a list. Not knowing what you like is not a flaw: it is a fact about how much room you were left.