A: It is difficult for adults to maintain friendship, mainly because adults are often more realistic, with families, responsibilities and more concerns behind them, which makes friendship need to give way to life. Therefore, in the adult world, it is difficult to maintain friendship. These difficulties are often life, reality and inevitability.

First of all, adult friendship often needs to consider the needs of reality. Although friendship can sometimes help us solve many problems, everyone wants to "go up a storey still higher". This mentality makes everyone want to be better, and makes everyone want to maintain a friendship that is helpful to them. This situation may be ignoring those friendships that really need to be maintained for a long time, which makes the original friendship fade away and gradually become a reality. The emergence of this situation is mainly because the reality needs to force yourself to make the most favorable choice, which eventually leads to some friendships being difficult to maintain.

Secondly, behind the friendship of adults is affection and responsibility. As an adult, everyone wants to think about his family because of the needs of his family and his own responsibility, which makes the original carefree life have to be forgotten. The original simplicity will also be forgotten. Sometimes, considering the needs of family members, some small interests may intensify the contradiction with friends, which will have some unnecessary influence on the friendship between themselves and friends. Because of the family behind, the responsibility behind, all these make the original recklessness need to be carefully considered. This kind of consideration has done some harm to maintaining friendship, which may lead to the end of friendship and the original friendship will gradually fade away. Therefore, it is difficult to maintain friendship in this context. It may be that the heart wants to maintain it, but the actual action may be more realistic.

To sum up, it is difficult for adults to maintain their friendship mainly because adults need to consider the family behind them and the responsibilities behind them, which makes friendship have to give way to life in many cases. When maintaining friendship, adults should try not to involve interests, but to maintain simple friendship, because if friendship involves interests, it may deteriorate friendship, and such friendship may not last long. Only simple friendship and time can make friendship last, and such friendship will get better and better.