Paying for sex is currently legal in England and Wales. It's a bit complicated because there's a bunch of stuff which is illegal around it (soliciting; inducing someone into prostitution; paying someone who has been trafficked; paying someone under 18; paying someone who is being coercively controlled; etc etc) but the core activity (two people exchanging sex for money) isn't illegal.
https://www.legislation.gov.uk/ukpga/2003/42/part/1/crosshea...
While it's not illegal there are understandable reasons to keep this private.
Not to mention the very common practice of buying a used car in cash but declaring the minimum allowable purchase price to the DMV to save on sales taxes.
Cash is King for a reason.
yes; my question is absolutely serious.
Do not see what your implicit between-the-lines written statement is pointing out to, like "all-of-you-are-bad-guys-if-you-do-X-or-Y"
Thanks for participating.