I agree, dedicated cycling lanes make a big difference. And the article points out the ageism involved in the Paris decision — the younger crowd benefits from scooters and loves them.
But beyond the the conflicts with pedestrians, and the difficulty of installing bike lanes… powered vehicles often do not respect them, particularly in cities. I’m thinking of videos I’ve see from New York; and a recent one from London, where a truck pulling over to off-load almost hit a cyclist while it purposely ran over tall obstacles installed to keep vehicles out of that section of the bike lane. Yikes.