Because if you start with bait, you can then appreciate later how much BETTER it is to fish with lures.
(sorry, you set me up!)
Seriously... welcome to SOL, Joe. Maybe they recommend bait because you ARE more likely to catch a fish with it. Every day is different, but I have found in general that bait is more productive than lures, lures are more productive than flies, and fly fishing is the BEST. If you want to catch half as many fish and have twice the fun... try fly fishing.
Just my humble opinion, because I am lucky to be able to fish 2-3 times per week. If I had to drive 4 hours on weekends only, I might be fishing with bait too.