Nope. :)
You can use google plus when you are 16.
No you do not have to pay for a Google reader subscription.
When using Google Checkout, one can expect to pay an extra 1.9-2.9% extra plus 30 cent per transaction. The percentage fee decreases with higher amounts of transactions.
Comments critical of Google Plus are censored, and everything posted on Google is also posted on Google Plus.
Advertizers pay Google, that is what makes it free for the rest of us.
See the related links for a link to Google Plus.
You can get out of community easily. Google plus is the social network of the Google community. It has circles and communities.
Oh, dude, Google Plus Google equals Google squared. It's like math, but with search engines. So, if you ever need to calculate how many Googles there are in a Google Plus, just remember it's Google times Google. Math has never been so fun!
2 google
You can pay online using Google Pay at various websites and apps that accept this payment method.
Google Plus is available in Australia - open to the public.