I've been self-emplyoed for about 10 years now, mostly as a web content writer but sometimes with some other things like researh chucked in. Digital marketing, social media, SEO that sort of thing.
I've been approached by my kids' secondary school to attend one of their skills workshops things along with other local business people or workers in creative industries to talk about what I do and open the senior pupils' eyes to work possibilities.
Having a major case of "don't think I should go as I don't really have anything to say, I'm not special in any way and everyone has much more contribute than I do".