Проблема с вектором в C++

Есть вот такой класс Student.

class Student
{
public:
    Student(){}
    Student(const Student &student) {
        firstName = student.firstName;
        secondName = student.secondName;
        patronymic = student.patronymic;
        dateOfBirth = student.dateOfBirth;
        address = student.address;
        number = student.number;
        faculty = student.faculty;
        course = student.course;
    }
    ~Student()
    {
        delete firstName;
        delete secondName;
        delete patronymic;
        delete dateOfBirth;
        delete address;
        delete number;
        delete faculty;
        delete course;
    }
    void setFirstName(std::string *firstName) {
        this->firstName = firstName;
    }
    void setSecondName(std::string *secondName) {
        this->secondName = secondName;
    }
    void setPatronymic(std::string *patronymic) {
        this->patronymic = patronymic;
    }
    void setDateOfBirth(std::string *dateOfBirth) {
        this->dateOfBirth = dateOfBirth;
    }
    void setAddress(std::string *address) {
        this->address = address;
    }
    void setNumber(std::string *number) {
        this->number = number;
    }
    void setFaculty(std::string *faculty) {
        this->faculty = faculty;
    }
    void setCourse(std::string *course) {
        this->course = course;
    }
    std::string getFirstName() {
        return *firstName;
    }
    std::string getSecondName() {
        return *secondName;
    }
    std::string getPatronymic() {
        return *patronymic;
    }
    std::string getDateOfBirth() {
        return *dateOfBirth;
    }
    std::string getAddress() {
        return *address;
    }
    std::string getNumber() {
        return *number;
    }
    std::string getFaculty() {
        return *faculty;
    }
    std::string getCourse() {
        return *course;
    }
    std::string show() {
        std::string comma = ", ";
        return *secondName + comma + *firstName + comma + *patronymic +
               comma + *dateOfBirth + comma + *address + comma + *number + comma +
               *faculty + comma + *course + ". ";
    }

private:
    std::string *firstName = new std::string;
    std::string *secondName = new std::string;
    std::string *patronymic = new std::string;
    std::string *dateOfBirth = new std::string;
    std::string *address = new std::string;
    std::string *number = new std::string;
    std::string *faculty = new std::string;
    std::string *course = new std::string;

};

При создание вектора этого класса вот таким образом и вставкой в конец экземпляра этого класса, вылетает ошибка -1073741819;

#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include "Student.h"
using namespace std;
int main()
{
    vector<Student> vector;
    vector.push_back(Student());
}

Но вот таким образом всё отрабатывает нормально.

#include <fstream>
#include <string>
#include <vector>
#include "Student.h"
using namespace std;
int main()
{
    vector<Student*> vector;
    vector.push_back(new Student());
}

В чём причина такого поведения?