Is it paranoia when the threat is real?
I know of several families with small children that are planning on taking (flying) vacations in the next few months. Some of them already have tickets in hand, others are in the planning stages.
The new regulations won't affect them that much. Most parents with multiple young children put everything in their checked luggage anyway, except for some snacks and in-flight toys. This was true before the new carry-on restrictions, and will continue the same. It's just not pratical to go carry-on only with multiple small children. The soap, shampoo, toothpaste, shaving cream, etc. all go in the checked luggage.
You can now bring on small amounts of non-prescription meds into the cabin, as well as prescription meds. The same goes for baby formula, sippy cups, juice boxes, and food for the kiddies. Oh, and electronics are also allowed in the airplane cabin, and even if they are banned, there's always crayons, paper, stickers, and a myriad of other toys that take no batteries and include no liquids.
Even if luggage restrictions become more severe, I don't see them preventing me from flying with DD. Increased ticket prices might, but not luggage restrictions. However, I am working on methods of entertaining DD without any props (e.g. with just voice, hands, eyes, and ears). I find that it is a great cost-savings technique, in addition to a useful skill.
-Kuovonne