Renewable Energies_Why are renewable energies not yet widespread?

What do you think about?
According to your opinion, are there any other reasons to support this questions apart the following ones?

•because they are expensive and people are not ready yet;

•because of their poor efficiency in terms of energy production;

•because it is difficult to find an agreement with local people when it comes to plants installation;

•because of the lack of a proper distribution greed;

•because they are barely known

•because of lack of a serious political will;

•other?

If you want to give your contribution and if you think this is the most relevant question to the discussion, support it!