What are the chances of someone in their mid/late 20s to get Colon Cancer. Seems like I hear more people in their 20s than any other age range online?

Pretty unlikely. According to American Cancer Society: "Overall, 90% of new cases and 94% of deaths occur in individuals 50 and older." http://www.cancer.org/acs/groups/content/@epidemiologysurveilance/documents/document/acspc-028312.pdf An Australian group puts the risk at age 30 at 1/7000. https://www.bowelcanceraustralia.org/risk-factors/age.