In the US it's legal for anybody to DATE anybody. However, if you're using "date" as a euphemism for "have sex with" ... then in some places in the US it would be illegal, but in Texas specifically it's (probably) fine; the age of consent in Texas is 17.
This assumes there isn't something else going on which is itself illegal (for example, if the 17 year old is a high school student and the 20 year old is a teacher at that high school; in that case it's not the ages that make it illegal, it's the educator/student relationship that makes it illegal).
yes it is, the legal age in Texas is 17 :)
yes it is legal
no
To date - yes. To have sexual relations with? That's a whole other question.
Get outta here you Pedo!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Only dating isn't illegal anywhere.
Yes, she is the age of consent and of legal age. You are both adults.
Why not? Everything's bigger in Texas. Think about it.
I live in Texas and it's illegal here. But it depend on which state you live in.
They are both minors, so yes.
yes
They are both minors, so yes.