When someone has been working in a particular industry for a number of years, they often pick up many skills and techniques that if shared, could help many other people. One way to share this experience and skills is to become a trainer and offer training courses for other people wishing to get in to the industry. Becoming a trainer can not only be a very rewarding job but can also be quite well paid.
If you think that you may be interested in going in to training, then you need to find out what (if any) qualifications you require. Some industries will require you to have a recognised teaching qualification to allow you to train others and you may have to attend manufacturers training courses as well. This may mean that you will have to go to college or university. For some people this can only be done if they are not working, so you may have a period of time where you are out of work or having to take job with less hours to allow you to complete your training. This can have a massive impact on your financial situation and should be thoroughly thought through before committing to a career change.