The SEC this summer altered the legal obligations of brokers and investment advisers. If you invest, you should care about the groundrules that these professionals owe you. There is controversy as to whether you are now better or worse protected after the SEC actions. See https://www.duanemorris.com/articles/brokers_investment_advisors_in_your_best_interest_0819.html for my August article attempting to decipher what the SEC thought it was doing.