under3s

Under3s refers to children under the age of three. In early childhood care and education, settings serving this age group focus on meeting physiological, social, emotional, and early learning needs. Ages typically covered range from birth to around three years, though age bands vary by country.

Settings include nurseries and day-care centers, family day care (childminders), and some playgroups or integrated services. They may be stand-alone facilities or part of larger early years provisions. Programs are usually structured around short, flexible routines with a balance of supervised exploration, caregiver-guided activities, and plenty of opportunities for physical movement and sensory play.

Developmentally, under-3s make rapid progress in communication, mobility, and social skills. Learning is primarily play-based and relational, emphasizing responsive caregiving, secure attachment, and safe, stimulating environments. Language development, coping with transitions, self-regulation, and basic problem-solving are common focus areas.

Regulation and staffing vary by country. Most jurisdictions require licensing or registration, safeguarding policies, and appropriate background checks. Staff-to-child ratios and qualifications vary; many settings employ practitioners specialized in early childhood, with training in first aid, observing development, and inclusive practice.

Health and safety cover hygiene, nutrition, sleep and feeding routines, illness management, and safeguarding from harm. Equality and inclusion practices aim to support children with additional needs and to involve families in planning and decision-making.

Funding and access differ by location; some governments provide funded hours or subsidies for under-3s, while demand and eligibility depend on policy and local provision.