自己看

• 就是不想到那一步。

 想不想是你自己的事，和法律没有关系。

 
• 父母办绿卡我是经济但保人，父母的医疗账单会追到我吗？

 See Affidavit of Support http://www.uscis.gov/green-card/green-card-processes-and-procedures/affidavit-support

 • 还是指父母不能申请问公共福利，比如Medicaid?

 All your answers are provided in http://www.uscis.gov/green-card/green-card-processes-and-procedures/public-charge You'll have to read them in detail.

 e.g.

 Q. What publicly funded benefits may not be considered for public charge purposes?

 ... Medicaid and other health insurance and health services (may not be considered for public charge purposes).

 

• 对老妈自己有什么影响吗，除了credit history?

 如果你妈对欠债没有负咎感，应该没有什么影响。你母亲的信用历史有没有用，只有你能说清楚。反正她的债她死了就没有了。