The 18-year-old has enjoyed a stellar debut campaign at European champions Madrid, where he has established himself as a key member following his €45million switch from Flamengo.
Vinicius has scored four goals in all competitions for Madrid this season and Tite told reporters: "I'm open to the emergence of new talent and to encourage them.
"If they are prepared to fight to be in excellent teams, technically and emotionally.
"This has led to him [Vinicius] being called up. He's had around 30... 26 matches, and that's remarkable, the performances he's giving.
Um dia que vou lembrar pra sempre. Quase dois anos de profissional e no jogo de ontem chegando aos 100 jogos com apenas 18 anos! Hoje, fui convocado pra SELEÇÃO BRASILEIRA onde vou representar o meu país pela primeira vez. Confesso que fico feliz, mas surpreso... pic.twitter.com/BIKVSOXNwu— Vinicius Jr (@vini11Oficial) February 28, 2019
"This analysis is quantitative but also qualitative. But quantity gives us the information. Players who have such potential and who are showing it, are called up.
"Even though we'll have little time to train, I want to give him the opportunity of growing and improving. This is confirmation [of his talent] and the evolution of it."
Vinicius and Real Madrid have plenty to be concerned with ahead of that, though, as the club pushes on in two competitions.
Through 25 matches, Real Madrid sig nine points back of the league leaders while Atletico Madrid sit second with two more points than their Madrid rivals.