Weird financial systems.

i heard about the weird financial systems some of the gulf countries have..weirder than i could ever imagine.for one they dont have any taxes,secondly they dont have interests in their banking systems.they have many more such aberrations .
im going to list them out here
1.no taxes.
they impose no taxes on their citizens n companies.thats weird i thought.how can a government survive without taxes?especially when our government sucks us inside out with those bloody taxes..the result is that goods r cheaper in these countries than even the producing countries..
2.no interests in the banks.
none.not on deposits,not on loans.nothing.makes me wonder y any bank would open up in these countries.or y ppl would put their money in the banks.but still it seems they flourish.
3.government paying money to everyone for getting married.i mean the government pays men so that they can maintain their wives.also for each child they have.wtf??is it a government or everybodies dad?i mean who pays citizens to maintain a family?
4.at the end of each year the government splits a percentage of its earnings among all citizens equally.by this point im pulling my hair.this means i get my ass busted here,n those ppl can sit on theirs n their dad AKA government takes care of them?that is crazy..
the answer to all these crazy things is a 3 letter word.
OIL.
they got it,v dont.no wonder Dubya wants it.