If people are not buying new furniture they will have their current ones cleaned so there will be more work for cleaners.
If you simply want to find out about cleaning leather then Day 1 at LTT only costs £45.00 + vat and will give you a good insight into whether it is for you or not, then you can do other courses at a later date when you get more experience, that way the investment is not high and you will not have lost much and will take only one job to recoup your expenses .......just a thought.