The 20-year-old playmaker is expected to have a big career call to make at some stage in the near future.
His potential is being courted by leading sides across Europe and big-money bids are considered to be only a matter of times.
Volland is aware that Leverkusen have a prized asset on their hands and believes Havertz, despite his relative inexperience, is sensible enough to think long and hard before deciding which path to take.
A fellow midfielder told Goal of a talented colleague: "He should sit down with his parents and make a decision that he supports 100 per cent.