Many VAT/Taxes yes but also dozens of millions what they not pay

Who should control this how much they earn?
Also in xbiz the most girls not pay taxes/VAT, nobody can check all this things, if they´ve an health insurance is there problem but sure in the east the most not have it and any other social and private insurance for the life after the good paid porn/escort life...
To make it legal yes is better this destroy the criminal work, same would when they legalize weed, no more dealer would earn because it were everywhere to buy, for example.
But is porn not almost the same like escort, girls get paid for sex and mostly they not know the guys before who fuck them and how long it takes, at escort they get paid by time so they earn more, most are whores before then start to do some porn to have promotion, many do this or maybe over 50% do escorting in porn?
check the romanian girls, all are escorts for example, best promo for it is porn...