Thought this info was useful:
From priority pass website
https://www.prioritypass.com/en/member-support/faq
"Many lounges will allow children to enter, charged at the same rate as an adult guest - some lounges will also allow children under a certain age to enter for free. For more details on age restrictions please check the lounge pages of our website or on our app."
From Chase Ultimate Rewards website (I have CSR):
"Primary cardmembers and authorized users are granted complimentary access to the Priority Pass lounges and allowed a maximum of 2 guests per visit per Priority Pass Select membership card. If you’d like to bring additional guests, you will be charged $27 per additional guest, per visit within 3 billing cycles."
Now the interesting question: What would happen if there are two adults and two children (under age restriction). I would assume that if a lounge treats the children as free, then everyone can enter. If the lounge requires a fee for child, then you would have to pay for 1 child (assuming a family of 4). Anyone with family of 4 able to confirm?