I too would HIGHLY suggest renting a home or townhouse. If you’re staying off property then they are the ONLY way to go!! Especially for privacy of the adults as well as the adult child. Some even offer 2 master suites so even better!! Most include their own pool/hot-tub or jacuzzi so why have to deal with a bunch of people when you can relax in your own peace & quiet “home away from home”.
Since our daughter hit the later teens we’ve been renting home/condo/townhouse as it affords us a larger, more comfortable space at a cheaper rate. Plus you have your own washer/dryer so less packing. Most homes come with a game room in the garage which features pool table, air hockey or fooseball so there is built in entertainment, as well as Wi-Fi too.
Considering they’re staying 14 days, renting a car, and not wanting “disney in your face 24/7” then a vacation home rental is the only way to go!! Why stay cramped up in a 1 room or 2 room hotel suite when you can have an entire 1800 sq ft house to stay in?!?! Plus if they WANT to eat in, grab a few groceries, drinks or whatever they have a full size fridge, stove and dishwasher all at their convenience. Hotel suites don’t offer this kind of service (that I’m aware of anyway). Plus the cost of a home is usually MUCH less than that of a hotel per night anyway!!
Just my opinion!!