I am A OK with places adding a tip or service fee as long as they clearly list it and do not spin sell it. Considering the tipping practice on the French side being different, I think it is reasonable for places to add it and just be up front about it. We in most cases would add to this amount again assuming they are honest and up front about it.

I would also state, as long as it is shared with the staff or the server specifically. If they do not, then that is not my problem but the staff's and their decision to work there.

Cheers,
Todd