Yup! I just do what you did, and rename the town residents’ kids to something that fits better and is unique to that save. Too many similar given names are confusing.
One of my current saves is in Midnight Hollow. I rarely play premade Sims, but I do progress them with MC commands. One of the resident households consists of husband and wife John and Jane Doe, and their children Joseph, Jennifer and James. Jane is also pregnant at the start with baby number four.
Jane gave birth to another boy, and out of all the names possible, the game named him Joe. Bad enough his older brother is named Joseph, but... Joe Doe?? :lol: At least it kept to the J theme! But I renamed him Joshua.
The family next door to the Doe’s is the Salas household, starting off with husband Jay, wife Tatiana, daughters Sandra and Frieda, and an unborn baby. The baby was a boy called Trevor, which I didn’t change. However, their fourth child ended up being a boy that the game named... Joseph! :joy: He’s called Andrew now.