Plan your own vacations when you want to, and plan a suitable combined vacation with this other family when you want to. If they freak out at your planning your own vacations as you see fit, then let them. Bowing to unreasonable demands because someone will make you pay emotionally if you don't is not a healthy option.
Carolyn HaxAnd if you're a parent who thinks you're okay because your kid doesn't have a phone or iPod yet, and/or you've used all the parent controls to filter out explicit material, you're not okay. The filters are tissue paper and your kid without a phone is on a school bus or in a locker room or at a public park with phone-equipped kids every day. And they're like all kids in exploring - by whatever means available to them - exactly what their parents are treating as too embarrassing or taboo to talk about.
Carolyn Hax