Insulting yourself might have been your intent, but what you wrote is just a general ageist insult. It's like you when you fail something, and you make a racist analogy. You might want to insult yourself, you might think you are insulting yourself, but you are just racist.
Insulting yourself might have been your intent, but what you wrote is just a general ageist insult. It's like you when you fail something, and you make a racist analogy. You might want to insult yourself, you might think you are insulting yourself, but you are just racist.