>> I would imagine Trump is smart enough to realize that the BSM is going to have a daily fit no matter what he does, so why do anything? <<
Because even though the POTUS is to some extent “above the law” in terms of his asset ownership and business interests, his children might very easily run afoul (or at least “appear” to run afoul) of many regulations and laws, both state and federal, if they give the impression of playing upon WH connections in the course of their business transactions.
Moreover, even if the Justice Department never lays a hand on the Trump family, investigations and litigation by state attorneys general, by other local authorities and by civil litigators could eventually spell serious headaches for Ivanka, Jared, Don Jr. and Eric. Mr. Trump might be well-advised to spare his kids the potential legal jeopardies involved.
I think if they limit the business to running existing facilities they will be fine. How much influence can someone have by playing a round of golf or staying a few nights?