Is it though? Personality types are not something that changes with age. Maybe it gets toned down or more mellow with age, or it could get more extreme as they become more comfortable/confident in doing what ever trait it is. Pre-social, it might have only been notice by those in direct contact with an individual. Now, it's made visible to the entire online world. Musk is still younger than Trump, and he's not slowing down at his age either.