And on what basis might you be eligible for the loan?
https://www.gov.uk/career-development-loans/eligibility
This is a bank loan. You need to start paying the money back one month after finishing the course. Obviously you'll need a non-flying job now with an income sufficient to pay back the loan. I would expect to be eligible there would need to be a connection between the training and your professional development that earns you income. I don't see how training for a PPL-H would qualify any professional development test.
You shouldn't be taking out any loan for pilot training on the assumption you will get a job as a pilot. If you have a good paying job doing something else, and you can afford to pay back a loan, then sure. But before you do take out a loan you need to accept that you might blow the lot and never recoup that investment (which applies either way, however you might finance your training, via a loan or savings or rich distant relative or whatever).