As well as girlswhocode there are also many non-gender-specific organizations aimed at helping young people into computer science.

Instead of asking whether gender-specific orgs for young people exist in the fashion or teaching world, you should also be asking whether non-gender-specific orgs exist in those fields as well.

The possible lack of "Young Male Teachers" organizations doesn't make much of a point if there's also a lack of "Young Teachers" organizations.