My family and I travel to Paris each year so we are more than familiar with its bistros and brasseries. This year, my husband turns 50 and I want to surprise him with a memorable dinner at an exceptional restaurant. My very well-behaved and well-travelled children, ages 14 and 12, will be, of course, joining us. First, I would appreciate any suggestions on restaurants, and second, do fine restaurants frown upon children, albeit older children, accompanying their parents for an evening of elegant dining? My kids have long since given up the "children's menu" and have quite sophisticated palates.