A.L.
A few quick comments:
Interest in 529 plans is tax free - it is not included when you complete your annual tax forms.
Every state has a 529 savings plan. The one advantage of the Illinois one is you get to deduct those contributions from your annual Illinois State Income Tax form (only the contributions/deposits you made, not what others deposited as gifts). You can do some research (Smart Money), they do a report frequently that identifies which state has the best plans. There may be a way to roll the 529 plan from one state to another without a tax hit, but I'm not sure.
The Illinois Bright Start Savings plan has different savings options. If you aren't used to investing, this can feel like you are gambling with your child's education money. I think the opposite, my money won't grow as much in a savings plan, and I'm gambling my child's education away that way. 18 years to grow money is a nice long time. There will be ups and downs. The ups should outweight the downs. Know your risk tolerance. If you're not comfortable with the big sways in the market, then stay more "fixed".
From my understanding of researching these about 6 years ago, 529 plans are not included when colleges are looking at your income/savings to determine financial aid. Maybe that will change by the time my kids are in college, but maybe not.
I thought some large "gifting" could be done through a 529 plan from a grandparent on an annual basis, where that may avoid some taxes for all involved. We're not in this situation with our parents, so I could be mistaken. But if you have some relatives willing to donate cash, that could be an incentive for them.
I opened 529 accounts for my kids before they were born. You open an account in your name or your spouses name, and start making contributions. Then when the child arrives, you change the "beneficiary" from you to your child. Works like a champ. Time is your friend when it comes to investing, and this gave our money even more time to grow. And I figured if we weren't going to be successful in having another child, I would change the beneficiary to another relative.
Lots of things to think about. Find a financial planner to discuss. Or maybe your parents talked to someone and you can talk to that person. A financial planner can open the accounts for you, but you can also do it yourself. If you do your own research, just know it will take more time.
Investing can be fun!
Good Luck
A.