Afraid of the unknown
Many persons are very reluctant to embark upon ventures they are not familiar or comfortable with.
This behaviour is often justified through overly rationalising such ventures.
Truth is they will find a way to talk themselves out of execution or implementation.
If this does not work they seek the advice of the overly sceptic to justify their own fear and reserves.
It is important to note that there can be no reputable accomplishments without embracing the unknown. Simply put your greatest hour comes when you overcome the fear of uncertainty.