No, absolutely not. It does not make you responsible for anything to the dependent at all.
529 college savings plan
If they live in your house, legally yes you can claim them. You can also claim a student in college as a dependent up to 21 years of age. So even if your student is paying their entire way, legally they can still be someone's dependent. When the child files their tax returns, they have to put that someone claims them as a dependent, or the IRS may look at why the guardian is also claiming them as a dependent.
no up until 24
If you're providing shelter and financial assistance to that student then you can claim them until their no longer dependent on you financially. They just can't file taxes for them selves in the same year that you're claiming them.
The requirements for a teacher's assistant certification is quite lax when it comes to education; it is dependent on which school district/state the teacher's assistant wishes to work in. The only required education a teacher's assistant needs is a high school diploma combined with on the job training. However, some college education or a college degree in something related to the education field/working with children is preferred and provides better opportunities. There are available college programs for graduate students that specifically address teacher's assistant.
Hereford College of Education ended in 1977.
Eltham College of Education was created in 1972.
Windhoek College of Education was created in 1978.
Froebel College of Education was created in 1943.
Paro College of Education was created in 1975.
Grizzly College of Education was created in 2009.
Hereford College of Education was created in 1902.