We've been in escape rooms where other participants brought young children. It doesn't work well, because the "thought puzzles" that make up the escape room experience are often "over their heads" and require focus that exceeds their attention span. Within a short time, the kids are bored and it tends to devolve into a chorus of "no, don't touch that" mixed with "no, it's not time to go home yet". It's very distracting from the "mission" of solving the room. ALSO: If you haven't reserved the entire room for your group, you may be inflicting your bored, irritable kids on others that happened to book the same time slot as you. It's not exactly fair to them.
This is more of an adult activity. I definitely wouldn't suggest it.
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