I'm of the opinion yes but at 31 currently, I expect to live the rest of my days on Earth.
In terms of what will be colonized first, my guess is the Moon for the profit to be gained from mining it. After the moon, then Mars 10 years after the first two sustainable Lunar Colonies are estanlished. I say two Lunar Colonies just to make sure the first can be replicated XD
What about you guys?
EDIT: Attached a poll.