Ticks are much more difficult for children (who have to be taught the above), definitely people with outdoor pets, people who didn't expect to be in the woods (gardening, picnics, shortcut on the walk home, etc), and people not returning for the night (ever try checking yourself for ticks by firelight? even then your laundry is nearby, and they might crawl out. etc)
Do you have a source for that claim?
edit: asked an ER doc, they joked "that's ridiculous, it's the common cold". Also my research and the doc suggest that Lyme is second to Chlamydia.
Edit: as opposed to "wood" ticks (quite visibly distinctive http://www.tickencounter.org/tick_identification/rocky_mount... - in spite of their name, quite common in the woody regions of NJ), which don't carry Lyme disease. In my experience, this type of tick was much more common than the "deer" or "black legged" tick in NJ.
Added benefits: deer overpopulation is also a huge problem for forest management (they eat all the hardwood saplings) and deer-auto collisions kill a couple hundred people a year and cause over $4 billion a year in insurance losses.