I'm sure that plays a role yes but that's why you hire an attorney who specializes in it as @Read_Lives_of_Saints mentioned. I think the fact that they felt there was no repercussion to not doing it and lots of advantages to not becoming citizens also played a large role. Not this guy but I do know someone who had a green card but also had a DUI so it was going to cost them a little extra to get their citizenship as the lawyer had more work to do on it. So they just never paid the $1200 it would have cost and instead I watched them spend money on BS, then Trump was elected and they were a huge victim terrified of being deported....idiot.
