Affordable, my wife and I are both ordinary working-class people. Since our son was a few months old, we have signed up for early childhood education at home. Grandparents take them with them during the day and learn various skills from him. In the evening, the whole family mobilized and played various interactive games with my son. /kloc-under 0/year-old, walking, talking, coaxing people and building blocks are much better than the children next door.