Right from the start when a baby is delivered, they are given to the mother to bond. this is a vary important part of A child's development they learn to become vary attached to there parents .but usually around the age of 2.5 years the child becomes more adventurous there for they learn to be ok with separating from the people that nurtured them from birth
This time in a child's life make a huge difference but maybe not for the reasons you think. This is the cause for the child to want to explore but sometimes not knowing the consequences the parents step in. This results in the child resisting more and is commonly known as the tarable 2s
Though kids can caues some havic that doesn't mean they don't love there parents. Around the 2.5 year mark kids are vary open about showing there love. This can also be taken far if they are so attached to mom and dad they can become klingy.
When a baby is a new born we as the older ones have to play with the baby's toys such as shaking a radle pushing a botton etc... But when the child is 2.5 they can play with the toys by themself witch is a prity big a compleshment once you think about all the factors that come into play
In order to work toys they need to be able to recognize different objects and people. There for around 2.5 years the child can identify there well known surroundings . This is a huge milestone, without it manny problems WILL take place such as disorientation.
Also tying in with the toys, the child knows that he or she owns things which means it's his or hers. They learn the meaning of this word and can freakintly using this word especially during the "tarable twos" stage. Used in this context it means the child thinks everything is there's, witch all results in also learning the meaning of hers his they're sand mine.
2.5 years is usually when the child's motor skills really start developing there little things but they play a big part in a child's growth some examples are 1) pedalling a tricycle 2) turning book pages1-1 3) holding a pencil in the writing pose
Since there's a lot of changes happening the child now has a fairly wide range of abilatys so they want to test them out this causes a need for independence witch leads to Even more longing and changing in the Vary near future