That’s the thing. Why didn’t he say he wanted to be president of the United States ... a much, much more powerful and wealthier country?
Dual citizenship?
It's much more difficult to become "President for Life" in the United States. Not that he's not working on it.
From http://www.voanews.com/english/news/a-13-2007-01-31-voa32-66763502.html:
“In an interview with VOA’s Indonesian Service, Obama’s third-grade teacher said he wrote in a class assignment that he wanted to be president.”
He was just keeping his options open.