Travel the world for free?

http://www.news.com.au/travel/news/travel-the-world-for-free/story-e6frfq80-1226329736878
This bloke claims to have been able to travel the world for free by doing odd, and I mean odd, jobs to get by.
My question is don't most countries require proof of funds to enter and also documents to be able to work in that country?
Surely a country like Canada that is listed isn't allowing him into the country without sufficient funds to support himself?
This bloke claims to have been able to travel the world for free by doing odd, and I mean odd, jobs to get by.
My question is don't most countries require proof of funds to enter and also documents to be able to work in that country?
Surely a country like Canada that is listed isn't allowing him into the country without sufficient funds to support himself?