In monetary- and production-based societies, informal childcare is seen in families who do not have enough funds to finance placing their children in a more expensive child care facility. A study done by Roberta Iversen and Annie Armstrong explains that due to long and irregular working hours of working parents, low- socioeconomic families are more likely to utilize informal childcare.[28] Those low income families are also more apt to work longer hours on an irregular and inflexible schedule, which ultimately makes using a childcare facility, that has regular business hours, unlikely.
Spain provides paid maternity leave of 16 weeks with 30-50% of mothers returning to work (most full-time) after this[citation needed], thus babies 4 months of age tend to be placed in daycare centers. Adult-infant ratios are about 1:7-8 first year and 1:16-18 second year.[citation needed] Public preschool education is provided for most children aged 3–5 years in "Infantil" schools which also provide primary school education.[citation needed]