Roco/Herpa minitanks are shipped in a semi-kit form from the factory as some delicate parts could be damaged in shipment due to rough handling by the shipper. There is no glue used in the factory assembly in order for modelers to be able to disassemble the item in case they wish to paint it (this is quite popular with these models). If you do not wish to paint the models you may use glue to make the model permanent.
This is a model vehicle and it is not a toy. It is not recommended for persons under 14 years of age.