I have spent the past 16 years working in the legal sector, but am considering a change of career to work with animals, e.g. as a veterinary nurse or in another type of animal care setting. Am I too old at 42 when I am likely to be competing for jobs with young college leavers? If I did decide to go for it, what would be the best way to get into it? Would I have to work and study at the same time?