public List <Person> ReadPeople(string fileName)
        {
            string[] allData = File.ReadAllLines(fileName);
            var      people  = allData
                               .Select(line => CSVStringToPersonConverter.Convert(line));

            return(people.ToList());
        }
        public List <Person> ReadPeople(string fileName)
        {
            using var reader = new StreamReader(fileName);
            string data = reader.ReadToEnd();

            string[] lines = data.Split(
                new [] { '\n', '\r' },
                StringSplitOptions.RemoveEmptyEntries
                );
            var people = lines
                         .Select(line => CSVStringToPersonConverter.Convert(line));

            return(people.ToList());
        }