Avenger1324 26 ก.พ. 2015 @ 4:26am
I don't know if there has been a change to this recently, but the question was asked not long after launch on the official forum, and the dev response was they never thought anyone would want to, so didn't include the option.
The main reason they acknowledged as valid for wanting to restart was to take advantage of the perk giving you a chance for more points with each level up.
#3