Anyone who chooses to participate in the scouting program (for the right reasons) really shouldn't be judged for their choices in styles. Whether it be hair, tats, piercings, jewelry, clothing, etc; as long as it is safe and not vulgar or offensive it should not be more important than their charactor, contributions, or willingness to learn. Respect doesn't always lead to conformance either, sometimes it just fosters tolerance which is just as important.
I think the bottom line here is that what is going on inside is way more important than the outside of a person.