No you can not kick a minor out legally.
Depending on the state you live in
Only if the sixteen year old is emancipated.
Yes, it is perfectly fine. In any state of the United States any two people over the age of 16 can engage in sexual intercourse.
Legally it isn't possible without parental permission.
Obviously we know how baby's are created, so the rephrase the question, it is illegal in Texas for a 19 year old to have sexual intercourse with a 16 year old. The age of consent in Texas is 17 (across the board)
Texas was a republic before a state so yes it can
The age of majority in TX is 18.
You can, but only if you are at the emancipation age required by your particular state.
They must emancipate you, otherwise you cannot.