I think most people also guessed he will move to Bayern Munich or Real Madrid. However, Florian Wirtz may consider another aspect, he wants to play in a more competitive league and joins a team that is suitable with his play style. Liverpool may be a perfect team that meets his dream for the future career as a footballer. I think it is no problem as long as he joins one of the top teams in the world.
Unexpectedly he chose to join Liverpool instead of choosing Real Madrid or Bayern Munich and he has also said this officially. Now it depends on Leverkusen although the agreement has been met for the player with Liverpool itself. Playing at any club is not a problem, as long as Florian Wirtz can ensure a place as a regular player and Liverpool is also one of the best teams in the Premier League especially so it is a very right decision if he plays at Liverpool.