An intimidating person
Some people feel uncomfortable around their friends' or partner's parents.
I find their intimidating aura shrinks when you just have more experience with them.But if they've done it twenty times in the past already a lot of the fear will have evaporated.Smart, competent individuals may have status and authority.This is another issue that comes up more in high school and reflects an attitude of being a bit too innocent and afraid of the world.Sometimes socially inexperienced people who obey the rules and color between the lines can see anyone who does some minor rebellious stuff as being really edgy and unstable.They may speed or park illegally, smoke under age, or buy a fake ID so they can get into bars.
Maybe they're a tad adventurous and daring compared to some people, but they're hardly sketchy supreme bad asses.
You get used to them, start to see them as normal people, and learn firsthand that they have flaws and quirks and insecurities like everyone else.
What also helps is improving your own confidence and social skills.
Some men don't feel comfortable hanging out with other guys.
They find them to be too macho, aggressive, cutting in their humor, or unpredictable.
This is another area where some experience can take the intimidating edge off a group.