Main Problem of Increase Tourist In Bangladesh

Tiger in Sundarban.
At now thousands of active problem is available against increasing foreign travelers to Bangladesh. We are one of the nearest country of Nepal but we hundreds of year backed from Nepal. Tour operator is the main source coming tourist in Bangladesh, why need tour operator? See the Indian tourism sector or Nepal Tourism Sector- Tour guide is main and only common source of those countries and they are success. And we are failed for our scammed tour operator. Now tourism sector redesign is main fact to increase tourist and build a safe zone for all travelers. A few month ago, i'm meet with a french tourist team at Sundarban. they are tours to mangrove forest without any tour operator. If we are failed to control thousands of valueless tour operator, then we failed to improve our tourism section in Bangladesh.