By 2050, developing Asia will have 1.2 billion people aged 60 or older, with rising one-person households and social isolation increasing long-term care demand. Around 43% of older adults needing help do not receive it. Care extends beyond caregiver-recipient roles, emerging through mutual presence, shared routines, and everyday interactions—termed care-with. Social networks provide companionship, recognition, reciprocity, and support that formal care does not replace but complements. Strengthening aging care systems involves supporting these relational networks alongside formal services, fostering environments where social connections naturally develop to enhance older adults' well-being and inclusion.