Socialisation is getting your puppy used to people and other animals so that he isn’t scared of them in the future and habituation is teaching your puppy that strange experiences, objects and situations are nothing to be scared of. However, for convenience’s sake, these two processes may be referred to as just socialisation.
If a puppy is not socialised properly from the time that you get him and throughout his first year, this can lead to serious fear and aggression problems in later life. It is therefore, very important. If you want a happy, friendly dog that you can take anywhere and meet anyone, then socialisation is the key!