@ChrisACole @IslandPirates77 @elaine_hali @J_D_Klein @HalCranmer Bias is possible but not this one since they report age, and the highest participation is 30-49 followed by 18-29.
@ChrisACole@IslandPirates77@elaine_hali@J_D_Klein@HalCranmer可能存在偏见，但这不是因为他们报告年龄，参与率最高的是30-49岁，其次是18-29岁。