TUCSON, Ariz.

Changing laws have made life tougher for undocumented immigrants in Arizona, including young people giving up dreams of college and better lives because they are unable to pay out-of-state tuition as required by voters.

With privately funded grants and scholarships lagging far behind the demand, some would-be students have dropped out, and others are considering a return to homelands they hardly remember in search of opportunity.

At 22, Jesus Pineda has lived half his life in Tucson. After arriving here at age 11, Pineda learned English in three months, eventually graduated from Catalina High Magnet School and started working with his dad at their family business.

He was planning to become a mechanic and studied the craft for two years at a community college until he dropped out of school in the fall of 2007 because he could not prove his legal status as required under Proposition 300, approved by voters in 2006.

Proposition 300 requires students to prove they are citizens or legal residents in the United States to qualify for in-state tuition at Arizona community colleges and universities. If they cannot, they must pay the higher out-of-state tuition fees. An in-state, part-time student can expect to pay $297 for six units while an out-of-state student will pay $504 for the same number of course units in college.

Voters approved the proposition after backers said the state should not be taking taxpayer resources and giving them to people who broke the law. The estimated 200,000 to 250,000 illegal immigrants living in Arizona at the time were costing the state substantial amounts of money, backers said.

Other states, including Colorado, Georgia and Oklahoma, also have laws denying in-state tuition benefits to students who entered the country illegally with their parents but grew up and were schooled in the state.

``I could no longer study because I don't have a Social Security number, so I started working full time,'' Pineda said.