The biggest road block IMO is that there are tons of people with "the next great Unicorn app idea", overwhelming numbers who's ideas are well beyond their means

The biggest road block IMO is that there are tons of people with "the next great Unicorn app idea", overwhelming numbers who's ideas are well beyond their means to implement or just plain bad to begin with. Having just a little road bump of needing to actually make something first filters out a lot of people.