Some of them. But that is not the requirement for the Texas Dream Act. All they have to do to qualify is sign a paper saying they will apply for legal immigration status (no time limit, not even 100 years). If this program is intended for those who have filed an application for permanent resident, why don't they require it?
Plus, every state that passes its Dream Act strengthens the national Dream Act, (rejected so far in congress), which gives illegals up to age 35 "conditional permanent resident status."
And all you need is a GED in Texas to apply—not just a HS dregree from a Texas HS. You can be an adult who entered the country illegally and then apply. The use of helpless children who were brought here by their illegal alien parents is a smokescreen. Under the proposed federal Dream Act, people up to age 35 could apply.