Because Sammy remarks, ..."I felt how hard the world was going to be to me hereafter," he probably moves back toward the more conservative path. Much like Flick Webb of Updike's poem, "Ex-Basketball Player," Sammy may end up having only one flash upon the stage of life, having realized its cost. He may well wind up in the role he has most detested: one like that of Lengel.
This story was first published in 1961, right at the verge of the social revolution that would occur in the 1960's. At the end of the story he has an epiphany about " how hard to world was going to be hereafter". The implication is that Sammy has reached a turning point in his path to maturity. He is nineteen and ready for fresh experiences and he has learned not to be a person who simply follows someone else blindly. This would indicate he would be very ready for the revolution in society that took place in the 1960's. I could see him as a leader of a protest march or a counter-cultural group. However, by the end of the 1960's, most of the revolutionary leaders settled down into regular jobs, married and had families of their own. So, perhaps after leading a life of protest in the 1960's, Sammy settled down and maybe even became a supermarket manager himself.