For one thing, you could go to a meet, where people typically give generously of their time and skills. I'm not aware of any commercial courses where you can learn about arrowmaking, natural dyes, suturing, fire by chemicals, canoeing and Viking lore all in one course. But you can at the Scottish meets
See, but therin lies part of the problem. You cannot fault people for wanting to pass on what they know to others for free, but the expectation from some newcomers I have observed attending such meetups is that they will be able to pick up everything they need (or want) to know on such occassions, leading to them sticking their nose up at paying however much for a professionally organised and taught course. Ultimately, you will only be ever to progress with a subject if you practice and learn around it in your spare time, but to me there is no substitute from taking initial instruction from a professional, particularly if you are learning elements of bushcraft and survival such as wild food identification or water purification where getting it wrong has serious hazards. If you rely on being taught by someone who has picked it up from someone who went on a course once with the best will in the world there will always be some 'skills fade' where stuff gets left out or is mis-conveyed. Just my thoughts anyway.