Background. Late psychosocial and neurocognitive effects are common in pediatric cancer survivors and may compromise long-term quality of life. While clinical risk factors are well studied, the influence of family, cultural, and socio-economic variables remains less explored. Methods. Between November 2022 and January 2023, 93 survivors of pediatric solid tumors (median age 16.2 years; median 52.5 months from diagnosis) completed a purpose-built 60-item parental questionnaire. Four outcome domains were assessed (psychological, neuropsychological, academic, social), alongside determinants across demographic, clinical, family, cultural, socio-economic, and premorbid areas. Associations were examined using Fisher’s exact test and non-parametric statistics. Results. Internalizing symptoms emerged or worsened in 52% of survivors, externalizing behaviors in 31%, and neuropsychological difficulties in 45%. Academic decline affected 32%, with 25% requiring an Individualized Education Plan. Social problems occurred in 29%, disproportionately among central nervous system (CNS) tumor survivors, who also showed greater loss of adaptive resources and rehabilitation needs. Lower parental education was significantly associated with externalizing problems (p = 0.039), while income, occupation, and residence were not. Premorbid psychological or scholastic issues strongly predicted post-treatment sequelae (all p < 0.01). Older paternal age reduced relational and scholastic difficulties, whereas larger sibling groups increased cognitive vulnerability. Conclusions. Psychosocial and neurocognitive late effects remain frequent in pediatric cancer survivorship, particularly after CNS tumors. Family educational level and premorbid vulnerabilities, rather than economic status, significantly influence outcomes. Tailored neuropsychological follow-up for CNS survivors and family-focused screening for others may optimize rehabilitation and long-term care.