•Kit is great at household chores. In canon it's proven that Johnny never cared about appearances other than his Shadow Market identity. So, Kit did grow up knowing how to cook and keep the house clean. He and Julian regularly hold cooking competition with Aline as the judge and it's just both of them because no one wants to eat Izzy's cooking and there is terror running through Blackthorns and Cristina that Helen might make porridge or something similar again.
•In the very first chapter of LM Kit's clothes are tattered so he obviously had to sew and mend them. Hence, Kit also knows embroidery and weaving. Just imagine Kit weaving beautiful tapestries of his times at Shadow Market and of the new view of Shadowhunters. He'll be very popular that Clave-in-exile and Unseelie Court have many of his tapestries which makes Seelie Queen curious of the Lost Herondale.
•Kit wants to be a journalist when he grows up. He was raised with a biased view by Johnny but he was able to see the faults in his father's teachings when he was with the Blackthorns. Plus he lives with Jem and Tessa now who along with Catarina, Magnus and Ragnor will tell him the true history of Shadow World.
*Kit is very intelligent and studious. In LoS When Zara mentioned the Downworld Registry Kit made mention of Mundane History even though Johnny had pulled him out of school when he was quite young. He knows of Greek mythology and in QoAaD he was quoted Shakespeare easily which he taught himself.
*Kit is also quite observant. In LM when Emma and Cameron visit Johnny's stall Kit was able to draw conclusions about them with no difficulty. It was the same when Jemma found that Ty had sneaked with them to Rook's house. Apart from Mark Kit was the only one who was suspicious of Magnus in LoS when the warlock at the second day in London Institute made Blackthorns lives easier.
*Therefore, I've a feeling that Kit will do a wonderful job as a journalist because who else than the boy who grew up in the Shadow Markets, is member of one of the most famous bloodlines among Nephilim and is the First Heir, will no how necessary it is to have truth spread and how to soread it. Alec, Ash, and Kieran had to bid (conducted by the rest of the TMI gang, Jessa, Blackthorns, Emma and Cristina) for having Kit as their official journalist.
Plus my personal headcanon Ty is conducting a Centurion investigation and he runs into Kit who in typical Kit Herondale fashion is there at the right place at right time and is following a lead for his research. Needless to say they are on the same case.
Just picture Irene instead of the dog. Sorry but I don't have a drop of artistic blood in me.
