It wasn't a foregone conclusion that Carter-Vickers would stay at Spurs. Arsenal reportedly made a run at him, while other Premier League clubs were linked to him, but he has chosen to stay at Tottenham.
Carter-Vickers was born and raised in England, but is the son of an American and plays for the U.S. youth teams. He looks set to be a fixture for the U-20 team and has even gotten a chance with the U-23s despite being just 16 years old.
The centerback joined Spurs when he was 11 years old and is one of Tottenham's top academy prospects, checking in at 6'1'' with good athleticism, impressive ball skills and the ability to read the game normally reserved for older and more experienced players. He's been playing up age levels at Spurs for years.
Spurs are probably a good place for Carter-Vickers to be. They have a history of promoting young defenders from their academy, most prominently with Ledley King and Sol Campbell, but even more recently with Steven Caulker. Mauricio Pochettino has put an extra emphasis on young players since taking over the club in the summer too, not just giving youngsters first team action, but also pouring resources into the youth teams. For a 16-year-old like Carter-Vickers, Tottenham looks to be a good home, and he'll be there for the next two years.