vacation is a BENEFIT, not a requirement. like sick time or pension, it is strictly up to the good will of the company.
it very well may be. did you get an employee handbook? you could also ask the boss just off the cuff.
Depends on the country your in and the law on work. I assume your in the land of the free so they are free to offer you no holiday.
None for me. I can have all the vacation my checkbook can afford. Lol! :)