What are the Arguments for Banning Opinion Polls?

-May affect how People Vote, so therefore it can Discourage People from Voting at all -Proved to be Inaccurate, seen with the EU Referendum. Some may have voted Leave as a Protest expecting to Remain anyways' -Politicians shouldn't be Chained to changing Public Opinions seen in Polls, which may be Wrong -France and Canada have Banned the Use of Releasing Polls. Both nations share Political and Democratic Systems to Britain