Getting involved in Disability Training as a career?

there are a number of wheelchair skills training opportunities potentially available through charities such as Whizz-kidz and Get kids going etc and disability sports specific training opportunities available within sport and leisure if that's your thing.  I would possibly look at starting out that way and then building experience and an awareness of whats out there.  Of the training consultants that I know working in areas of accessibility, some have legal backgrounds, others just a lot of experience and have worked in DPOs etc.  I am sure other people will come up with other ways of accessing this line of work, but hopefully this gives you some ideas.