My flight arrives at CDG around midnight and I am traveling alone. I am a bit worried about safety and finding transport when the terminal is empty. Is there a service that stays with you until you are safely in a taxi?

Late arrivals can be daunting when the airport is quiet. For peace of mind, you should book Paris airport fast track https://airporteo.com/airport/paris-charles-de-gaulle-cdg/ arrival service. Airporteo operates 24/7 and their greeter will stay with you from the plane until you are safely inside your pre-booked vehicle.