Teenagers, with the fastest texting thumbs in the world, were able to flag flight delays before the airline announced them, book an airport hotel room on the spot, and have Siri tell them which pizza place delivered to the middle of nowhere. Toddlers? You still must entertain them for hours and their stuff weighs more.
Taking a babysitter along on the family vacation provides you with the freedom and support necessary to truly feel like you're on vacation. It gives you the flexibility to see sights that aren't kid friendly, enjoy nightlife, and participate in activities that are not possible when you're caring for young children.
I've been noticing that each year the back-to-school craze seems to begin earlier and earlier. Is this because unbeknownst to me (now that my kids are grown) school is starting in July?... Why then, must I be accosted with visions of notebooks and backpacks before I've even made a visit to the beach?