It's better to enter the workforce prepared and later than early and unskilled. Consider what you'll be spending that extra time doing: Learning the theory along with the practical. Traditionally, theory and practical were split between university and college respectively, but in a degree program, you're getting both as one education. Rather than delaying your entry into the workforce, you're banking that extra time so you'll enter it with a broader intellectual base than the average college student, which brings us to how…
The way to not be the "average college student" is to have a unique educational background. In a crowded job market, that unique background can cut you ahead of the mob and put your resume to the top of the pile (sometimes literally). Possessing both a university's theoretical education and a college's practical training is one way to stand out, demonstrating your special perspective on the career you wish to enter.
Consider yourself and your viewpoints a short two years ago, and how they've changed in the interim. There's a significant difference between entering the workforce at 20 and 23, and 23 and 26. It's a cliche, but this phase of your life is a time of change, and over the course of a few years your ideas, perspective, and personality will shift. Entering the workforce a few years later can put you ahead of the crowd strictly by making you a slightly more mature, wiser voice.
As your maturity level shifts, so too does your outlook on your job and your career. While Degree Programs at institutions like Centennial College focus on a specific career, there's room for variation within that career, and electives to be taken so you can focus on a specific aspect. Over the course of those four years, you'll have a chance to examine every facet of your career, and decide what area of it really want to be in, and what suits you best. That time to consider what you want out of life before making the leap into the workforce will be immensely valuable.