Genuine prayer comes from genuine love. When you are forced to talk to someone it can be difficult & awkward, possibly even resulting in you not wanting to talk to that person again. Many Christians sadly have that sort of forced prayer relationship with God. They are told they have to pray to be a good Christian & they force themselves to pray when they wouldn't otherwise want to.
We think of "have to" instead of "get to" & "want to" usually because that is how prayer is presented to us. We get to talk to the God of the universe who loves us & wants us to experience His love. Prayer is not an obligation to fulfill. Prayer is communication in a relationship that has such depths of love we can literally spend forever searching through them.