Kittens are still developing their personalities A kitten is only a kitten for a short time period.
Kittens are adorable, but hard work, requiring a lot of time and patience for at least a year.
Each cat's personality is unique and by adopting an older cat you know what personality you are adopting. Older cats are very appreciative that you have given them a home and will love you for that. Older cats have developed a good immune system.