Oh come on. Tax evasion by barbers is a classical example of why taxes are so high for the rest of us.
The cost of bookkeeping for a very small business is essentially zero. Everywhere that I know of exempts small business from double entry bookkeeping. VAT exemptions exist if revenue is low enough, too.
Privacy requirements are even easier: don't ask for, store, or process any personal information you don't absolutely need.
I am not sure what you are driving at. My understanding of double entry bookkeeping is it's simpler and easier than the so called "single entry" bookkeeping which adds a lot of complexity because of all the special cases.
A simple spreadsheet of income & expense is all that's required for most small businesses. Larger companies require full fledged double entry bookkeeping with requirements about charts of accounts -- which usually necessitates paying an accountant, unless you enjoy that particular kind of pain.
The cost of bookkeeping for a very small business is essentially zero. Everywhere that I know of exempts small business from double entry bookkeeping. VAT exemptions exist if revenue is low enough, too.
Privacy requirements are even easier: don't ask for, store, or process any personal information you don't absolutely need.
Your barber is being dramatic.