Congratulations Leto! All your hard work has finally paid off. The real question is: when he greets someone, does he bow or kiss on the cheeks?
Only in China.
And the weird thing is, I've breed this sim (Gustason) with Layla Lufti from Egypt and the child from them Lagusta did not eat with chopsticks and only remembered two Egyptian songs.
Last thing I will do is breed that sim with Maya Wang from China to see the offspring from that.
And as a backup plan I have copied Gustason, change the copied sims gender to female and call her Gustaly. She is now pregnant from Gustason as like I'd said: a backup.