Most advice for Paris with children is a list of attractions with a "family-friendly" label. The label is rarely wrong. It is also rarely the problem. What decides whether a family trip to Paris works is not which places you choose — it is the rhythm, the stairs and the evenings.
The verdict
Works if you plan one major thing a day, leave room for a park, and move around by bus and on foot more than by metro.
Does not work if you try to do Paris the way adults do it — three museums, a long lunch, dinner at nine.
Works only if you accept that the children will remember the carousel and the pigeons more than the Louvre. Plan for that, and the trip is easy.
What actually works
Parks, more than monuments. The Jardin du Luxembourg has toy sailboats on the pond, a puppet theatre and a playground. The Jardin des Plantes has a small zoo and the Grande Galerie de l'Évolution, a hall of animals that holds children's attention far longer than paintings do. These are not filler between sights. For young children they are the sights.
Short, vivid visits. The Sainte-Chapelle takes twenty minutes and the stained glass stops children in their tracks. The Cité des Sciences has spaces built for them. A museum that ends before they are tired is worth more than a great one they have to be carried out of.
Carousels and bakeries. Paris has carousels in many squares and a bakery on nearly every street. Both are small rewards that punctuate a day and cost little.
Many national museums are free for children. Visitors under eighteen enter free at many of them. A family can visit with adult tickets only.
What does not work
The Louvre as a full visit. Too large, too crowded, too much walking between rooms. If you go, go for one thing and leave.
Long queues. The Eiffel Tower summit in summer, the popular museums without a reservation. A child in a queue for an hour will decide the rest of the day for you.
Late dinners. Many Paris restaurants begin evening service later than families eat. Plan an early meal, eat lunch as the main meal, or use the bakeries and cafés that serve all day.
Getting around
The metro is hard with a pushchair. Many stations have long staircases and no lift. A child carrier is far easier than a pushchair underground.
Buses are easier. Most Paris buses are low-floor and take pushchairs, and a child sees the city from the window instead of a tunnel.
Walk more than you think. Central Paris is compact. With a sensible plan, much of the day can be done on foot, which is also how children see the most.
Public toilets exist. Free automatic toilets on many streets, and cafés and museums in between. It is worth knowing before you need one.
The rhythm that works
One major thing in the morning, when children have the most energy. A long lunch or a picnic in a park. Something light in the afternoon — a garden, a carousel, a short visit. An early dinner. That is a full day for a young child, and a pleasant one for the adults.
Who this does not suit
If your children are teenagers, most of this is too gentle. They can handle the metro, a real museum and a later dinner — and they will want more say in what you do.
If one child has a specific passion — dinosaurs, trains, painting — build a day around it. It will be the day they remember.
If you are in Paris for two days with a toddler, choose one area and stay in it. Crossing the city twice a day costs more than it gives.
What we do not know yet
We do not publish opening hours, ticket prices or which stations have lifts, because they change and must be checked before you go.
What does not change is the principle: one big thing a day, a park, and an early dinner. Paris is easy with children when you stop trying to see all of it.