In Ramayana, a teenager named Shravan Kumar appears, whose filial piety is exemplary. Dasharatha, Rama's father, kills him accidentally & is cursed by his grieving parents to die when separated from his son, Rama.
In Padma Purana, the story of Pundalik appears. Unlike Shravan Kumar, he was married, uxorious & neglected his parents at first. However, a Sage named Kukkuta, advised him to mend his ways. He did, to such an extent that when Krishna visited him, he asked him to wait till he finished serving his parents!
Even in Western literature, two novels stand out. In George Eliot's "Silas Marner", Eppie, abandoned by her rich father, is brought up by Silas. When her biological father later offers her wealth & status, she refuses & stays with Silas as a loving pillar of strength even after marrying a poor but good farmer.
In L. M. Montgomery's "Anne of Green Gables" Anne Shirley, an orphan, adopted by elderly siblings Matthew & Marilla, sacrifices her higher education to live with Marilla in her old age after Matthew's death. It should be noted that both Eppie & Anne are not even related by blood to the elderly people they choose to live with!