Most people don’t get too upset at anything a two-year-old kid says to them.
Source: The toddler strategy
This is not to say that you should ignore/dismiss all criticism you receive.
We all can learn from others’ criticisms of us. But it’ll probably be obvious which of your critics are people who are criticising just for the sake of criticising and which actually have your best interests in mind. For the former, wait for them to grow up…or not.