Why would a toy front legs keep collapsing making it fall on its nose?

Front legs not attached properly. In many toys, the front legs are simply attached by a thin plastic piece that sticks into the body. These pieces can break or come loose, especially if the toy is played with roughly. If this happens, the front legs will be too loose and won't be able to support the weight of the toy.

Weak or damaged front leg joints. The front legs of many toys are connected by joints that allow them to move. These joints can be made of either plastic or metal. If the joints are made of plastic, they can break or become stripped, making them unable to properly support the toy's weight. If the joints are made of metal, they can become loose over time, also causing the toy's front legs to collapse.

Damage to the toy's body. If the toy's body is damaged, such as if it has a hole or crack in it, this can cause the front legs to become misaligned and unable to support the toy's weight.

The toy is too heavy for its front legs. If the toy is too heavy for its front legs, this can put too much stress on the legs and cause them to collapse.

Misassembled toy. If the toy is not properly assembled, the front legs may be assembled incorrectly, causing the toy to fall on its nose.