I should also mention the historical context, maybe how these roles have been depicted in both traditional and modern Sinhala literature, and any evolution over time. That would help in discussing the verification aspect—do modern stories stay true to traditional roles, or have they changed?
Another angle is the influence of Buddhism in shaping the moral attributes of these characters. Since Sri Lanka is predominantly Buddhist, the teachings might influence how mothers and grandmothers are portrayed, emphasizing virtues like compassion and duty.
The user might want to emphasize the authenticity ("verified") of these portrayals. So discussing how modern stories adapt or maintain traditional roles versus how past literature depicted them. Maybe touching on the impact of societal changes on these roles in contemporary stories.