using System;

using System.Globalization;

using System.Collections.Generic;

using System.Linq;

using Bogus;

using Bogus.Extensions.UnitedStates;

​

Randomizer.Seed = new Random(1);

var customerFaker = new Faker<Customer>()

    .RuleFor(c => c.FirstName, f => f.Person.FirstName)

    .RuleFor(c => c.LastName, f => f.Person.LastName)

    .RuleFor(c => c.Gender, f => f.Person.Gender)

    .RuleFor(c => c.SSN, f => f.Person.Ssn())

    .RuleFor(c => c.DateOfBirth, f => DateTime.Parse(f.Date.PastOffset(100, DateTime.Now.AddYears(-18)).Date.ToShortDateString()))

    .RuleFor(c => c.Email, f => f.Person.Email);

var customers = customerFaker.Generate(100);

​

var genders = customers.GroupBy(a=> a.Gender).ToList();

foreach(var gender in genders)

{

    Console.WriteLine($"{gender.Key}: {gender.Count()}");

    var avgAge = gender.Average(a=> (DateTime.Today - a.DateOfBirth).Days);

    Console.WriteLine($"Average Age: {avgAge/365.0}");

}

​

public class Customer

{

    public string FirstName { get; set; }

​

    public string LastName { get; set; }

​

    public Bogus.DataSets.Name.Gender Gender { get; set; }

    public string Email {get; set;}

​

    public DateTime DateOfBirth { get; set; }

    public string SSN {get; set;}

}