The Jakub Kiwior family was quite supportive of their child's dream of pursuing a career in professional football. Kiwior started playing the beautiful game from the age of four, which caught the attention of Jakub Kiwior parents, who somewhat anticipated his fate beforehand. His father, Piotr, was a construction engineer by profession. When Jakub showed the potential of what he could achieve in the world of football, his father decided to support him wholeheartedly. He even had to prioritize his son's well-being over his professional aspirations at times, but ensured that his son got the best of the facilities to achieve what he wanted to. Jakub started playing football with a local club named PUKKS Chrzciciel Tychy before moving to GKS Tychy in 2007. He went on to join Tychy's youth system in 2012 and got his well-deserved chance to train with the senior team. At the age of 16, Jakub was called up by the academy of RSC Anderlecht in Belgium. Piotr suspended his construction business, something that provided the Jakub Kiwior family with the much-needed stability, and decided to move with him to Belgium. He stayed there for three years, ensuring his son didn't feel left out in a foreign country and adapted to the academy's environment. Piotr was his mentor and his biggest cheerleader at that time, helping his son adjust to the rigorous demands of professional football. Piotr's presence ensured that his son never felt homesick, preventing the phases of isolation that many young footballers face in foreign academies. Poitr's efforts provided dividends as Jakub caught the attention of top European clubs in the world and finally signed his first professional contract with FK Zeleziarne Podbrezova in 2018.
Jakub's mother, Agnieszka, took care of her younger son, Kamil, and provided the required emotional support for both her husband and older son living in Belgium. She used to take care of the household and raise her younger son at the same time, signifying a test of resilience. She would often drive Jakub to his football practices at PUKKS Chrzciciel and supported him from the sidelines for many games.
Jakub Kiwior net worth is estimated to be around £1 million to £7 million. Although much information isn't available regarding his net worth, one can make out that Jakub Kiwior net worth has significantly increased since he started playing football. His strong outings at the club level have seen an upward graph in his net worth, and it is expected to rise more if he continues to perform at the level at which he has been playing lately. The Polish international's £20 million move to the Gunners in 2023 was the starting point, after which Jakub Kiwior net worth kept rising. His partnership with Adidas also contributes to his net worth and is expected to rope in further endorsement deals in the future.