Or neither? Very few people will reach senior management and very few startups are successful. Any IT career is going to set you up for a comfortable life even

Or neither? Very few people will reach senior management and very few startups are successful. Any IT career is going to set you up for a comfortable life even if you're a mid-level non-management workhorse. Excelling is partially about skill, but vastly more about persistence and luck. Find something you enjoy and don't worry about where you'll be in 20 years.