I found an excellent news article the other day that revealed from a study that peak friendships occur around the age of 25, then it's all downhill. The article then states that the friends you have around 40 stabilize to about 55, then your circle of friends will decrease again.
As people get older, their social networks wax and wane before ultimately fizzling down to a small group of close acquaintances.
According to a new study, people will have the highest number of friends around the time they reach 25.
In the study published today in Royal Society Open Science, researchers from Aalto and Oxford Universities analysed the cell phone communications of 3.2 million users in Europe.
The team looked at the calling patterns (excluding text messages) between pairs of people of known age and gender in 2007.
Overall, the researchers found that peak friendship would occur at around 25 years old