Life is like a bridge

Life has many patterns and levels to see, to be with ,to achieve, to attend but somehow, it wasn't what we wanted that comes. Sometimes we had to deal w/ life challenges and obstacles.
In my point of view, life is like a bridge. In its construction,materials needed,as we grow there are intakes and partakes to be consider,we need food,shelter and education.

Upon building a bridge there are possibility of cheap materials and labor causing disruption of said structure,as for our life if we come across challenges and when the structure is finish, the used of it start,more and more vehicles come by and run, like us many people come and go,some stay,some leave. Over the years, bridge might come to its expiration ,cause it served its purpose. life won't be easy as we thought, bridge won't be easy to build and construct.