With someone's life, the first year of the life is important in development stage backward.
As soon as a baby was born, cognitive, communicative, physical ability doesn't still achieve normal like adult.
They need a long time progession to grow up and recognise the outside world.
In stages, they need an upbringing environment because there are crucial milestones need to be improved.
Uncompletely physical and mind is showed clearly in this stage.
A sensitive skin, immature instinct, weakly body, that's so, they need to be taken care of the whole day, whole night for 2 years first.
When they grow up a little bit, they can feel something in real life and out of the door, skills will be more, connective ability will also pull up.
When the baby comes into toddler stage, we are going to prepare for them basicly knowledge.
We are going to role a mentor to guide them to right thing, suggest and play with them because this is important stage in independent development.
Immature brain will br replaced by imagination they understand language and they can show us many incredible things.
Try it and see.
When they step into adolescence stage, character, brain physical with close improve.
By good nurture and taking care of parents, family, they will have a rewarding life to explore.