Did Jackson's early life exemplify the kind of background that prepares someone to be the president of a truly democratic country?

No. Andrew Jackson was the first president to not come from any sort of rich and privileged background. Jackson actually barely even went to school. His mother was a maid who worked in a hotel. Most of the other presidents were from a political background or had previously worked with the government before while Andrew Jackson was essentially an outsider. He believed Gov't duties should be plain & simple and in his term in office didn't sign any major laws that really benefited America. Throughout his life, even though he became rich he always sympathized with the poor and was always humble.