Hi,
a) I think it's worth it. I love my job and my profession.
b) No, you're no too old. Not at all.
c) You are eligible for a 2 yr Masters in Physio without a scientific background? That's strange.
d) I have also heard that the job situation in Ireland is not very good at all.
e) Free time: work experience is very difficult in any medical profession due to issues with confidentiality. As far as I know there are no books. You could start with a First Aid certificate, study communication and education (children and adults) and maybe look at basic anatomy.
Otherwise, I hope you also have a huge passion for 'unfitness' and diseases, because that's what you're mainly be dealing with.
What are the characteristics to make an accomplished Physio? You made me curious - I'd really like to know this.
Cheers,
Fyzzio