No problem at all outdoors- just don't get in the way.

When you're on private land bear in mind that the owners/ managers can decide to allow photography or not, or tripods or not at their discretion- just like in the US. I've been refused entry to a private gardens - open to the public paying an admission- because I was carrying a tripod. But thats just once in many weeks of photographing in Italy and probably twenty days in the last ten years in Venice alone.