Sorry if this is a repeat question. I am wondering if when you purchase a Paris pass and visit a museum do your children ages (18 and under) need to stand in a separate line for a "free" ticket? (hence negating one of the benefits of purchasing the pass).
Thank you for any input.

It depends. Most places, the kids can skip the ticket-buying line with you. There are a few places where they might need to stand in line to get their own free ticket - we were told that was the case at the Arc de Triompe so we waited in line, but once at the front, we were waved through, so who knows?

All of you will still need to wait in the security lines. But I did find that skipping the ticket-buying lines was still useful, particularly at St Chappelle and l'Orangerie.

Are you sure you even want the Paris Pass? Nine times out of ten it is an overpriced, un-needed item. The Museum Pass, on the other hand, is usually well worth it if you are planning to visit even a few museums.

Have you already purchased the Paris Pass? If not, don't. It seldom if ever saves €€/$$. It overwhelms with all the covered sites, but in real life it is very difficult to hit enough of them in the short duration of the pass to make sense.

As StCirq says, the Museum pass is a much better deal -- but even that will depend on how many you plan to visit.

I have yet to see any scenario making the Paris Pass, or any of its derivatives, a wise purchase. It simply costs more than the sum of its parts.

If your question is about the Museum Pass, which is an element of the Paris Pass but can be purchased separately, children under 18 do not need to stand in the ticket line and may enter with you at the pass entrance. However, any ticket purchased in advance, whether it be on line or as part of the Musuem Pass, allows you to skip the ticket line and use the pass entrance.

Sorry - my earlier response was in reference to the Museum Pass, not the Paris Pass. Thanks to those who pointed out the difference!