Privacy Policy Generator.

You don't have to have a privacy policy page, but its good practise and more professional.

You can use this privacy policy generator. Please tick the boxes that apply to you.

http://www.serprank.com/privacy-policy-generator/

Adsense Privacy Policy.

If you have adsense on your website, you need to have the correct privacy policy, the generator above will write it for you, just make sure you tick the correct box, this is one of the reasons, why I have put a privacy policy on every website, to make sure i dont break adsense terms of service.