More and more countries are hostile to US citizens. The US applies all sort of pressure, especially on banks, to deny them bank accounts and others.
I had a friend who was born in the US, while his parents were on vacation, so he automatically got US citizenship even though he never lived there. And dealing with banks in his "real" home country was becoming more and more difficult. He was even forced to file taxes with the IRS, even though he literally lived in the US for the first 2 months of his life at most.
So, even if it's a one way ticket, just the fact that you have US citizenship can make daily life a little complicated .
Citizenship does not really work that way. I suspect your 'friend' was exaggerating things somewhat!
He would have been granted whatever citizenship his mother had, by that country, since he lived there while growing up. Any rights or penalties associated with the US citizenship would only come into play if he actively sought them out, having first gone to a US embassy and explicitly obtained citizenship for himself. Generally the only reason to do that is if one intends to move to and live in the USA.
It does work that way in the US, don't patronize me. When someone is born on US soil, they automatically get US citizenship and US birth certificate from the hospital.
This is a very common problem for people who acquired US citizenship this way, I encourage you to use Google instead of calling people liars.
It absolutely does in the U.S., if you are born in any U.S. territory you are automatically a U.S. citizen and do not have to do anything to further establish it beyond that point.
I had a friend who was born in the US, while his parents were on vacation, so he automatically got US citizenship even though he never lived there. And dealing with banks in his "real" home country was becoming more and more difficult. He was even forced to file taxes with the IRS, even though he literally lived in the US for the first 2 months of his life at most.
So, even if it's a one way ticket, just the fact that you have US citizenship can make daily life a little complicated .