A large number of private space companies (eg masten space) are working on building cheaper spacecrafts. That is the first step. Once we have a way to reach pot

A large number of private space companies (eg masten space) are working on building cheaper spacecrafts. That is the first step. Once we have a way to reach potential off-world colonies more cheaply (and thus conduct more extensive research, create a commercial payoff for creating one etc), establishing one will be a real possibility.