From our experience, most salons will start the day with a standard amount of cash in their till. If the salon doesn't use the cash up feature, the cash amount will accumulate and eventually end in the thousands.
A salon should be able to set a default cash level (float) to reset to every day.
Eg. default float: €200, and anything above that is banked automatically.
In the atatched screenshot the cash has accumulated to over €40k