指针变量无法正确处理内存地址

这显示了一个错误，“子”周围的堆栈已损坏。我想到了所有可能的错误，例如数据类型匹配，传递地址和地址被正确接收，通过scanf正确分配值等，但是错误仍然存​​在。帮助表示赞赏。

#include <stdio.h>

float totalPeople(float* child, float* adult, float* senior);

void main()
{
    float child, adult, senior;
    float totalP = totalPeople(&child, &adult, &senior);

    return 0;
}

float totalPeople(float* child, float* adult, float* senior)
{
    printf("Enter total number of child: ");
    scanf("%lf", child);

    printf("Enter total number of adult: ");
    scanf("%lf", adult);

    printf("Enter total number of senior: ");
    scanf("%lf", senior);

    float totalP = *child + *adult + *senior;
    return totalP;
}