Можно ли делать возврат из блока using(){}?

    public static StringReader R()
    {
        string manyLines = @"This is line one
        This is line two
        Here is line three
        The penultimate line is line four
        This is the final, fifth line.";

        var reader = new StringReader(manyLines);
        using (reader)
        {
            string? item;
            do
            {
                item = reader.ReadLine();
                Console.WriteLine(item);
            } while (item != null);
        }

        return reader;
    }

Вот банальный пример