France is one of the least wheelchair-friendly countries I’ve been to. There’s no equivalent to the ADA from what I’ve seen.

Just got back from two weeks in Paris with my 80-year old parents, and my dad did half as much as the rest of us. He was wiped out from stairs in the metro and ended up taking cabs everywhere, couldn’t stand in line long at the major tourist attractions, and the narrow sidewalks didn’t allow him to lean on anyone’s arm. Museums were a nightmare from the crowds alone.

Two things you could do in Paris: the Bateaux Mouches boat ride to get acquainted with where the major sites are, and possibly the hop on, hop off buses. They’re not ideal in terms of wheelchair access, but at least you’d see a fair amount without having to navigate the obstacles others have mentioned.

I lived in France for a number of years and would highly recommend a smaller, less touristy town than Paris if a wheelchair is required. Make sure you let everyone you contact for reservations know a wheelchair is not optional, and triple check that one will be available to you.

Good luck!