Why did father destroy the glider in dragon wings?

In "Dragonwings" by Laurence Yep, Father destroys the glider out of fear for its safety and concern for the family's well-being. He believes that the risks associated with flying, especially for a Chinese American family facing prejudice, outweigh the potential rewards. His actions reflect his protective nature and the pressures he feels to provide for and safeguard his family in a challenging environment.