This is free will in essence. Making a choice is also choosing to not to do the alternatives. A person has to make peace with this to live without anxiety over life decisions. We are free at the end. We can completely change track if we really want. This isn't meaning to be streched out of physical reality if course. One cannot be an olympic athlete after a certain age, but can start training to be a good athlete at any age if that is the desire. Financial security is often a big limitation unfortunately.