Did you ask her about it?
And then - people lie, and the reasons are even more manigfold than people.
I am not sure if any sex-worker would suggest their kids to become sex-workers, too, because it is such a lovely profession.
The same goes for escort-service, hostesses and similar.
I guess 99,99 % of all people would rather not see their kids in a sex-selling-job.
So if it is not good enough for their kids, why should it be good enogh for them?
I assume that there might be underlying self-limiting beliefs AND of course poverty.
I NEVER heard of a regular sex-worker, who started wealthy and independent.