We will be flying to London & Amsterdam with DD. She will be 5 and at least 46 inches tall on the trip and is in a high back booster at home.
We may take 1 or 2 short taxi rides (train station to hotel when coming from hotel), but plan to primarily use public transit & tourist buses in both places. Do the strict booster seat laws apply to taxis? If so, would a Bubblebum be sufficient?