In Amsterdam, bikes and cars are separated from each other wherever possible. That way, bikes can ride as recklessly as they like without endangering cars.
Bikes and pedestrians are harder to separate. Pedestrians can go everywhere, and especially tourists have a tendency to not watch out when they're crossing a bike path, or even stay on the bike path for no good reason.
The worst place is behind Central Station, where a heavy flow of pedestrians from the ferries and the station has to cross a continuous flow of bikes on the bike path, while bikes from the ferries try to merge into the already chaotic traffic. We really need a bridge or tunnel to keep bikes and pedestrians separate there.
Skating isn't a big form of transport here. Most skaters are recreational and stick to the parks. Though I did encounter a (remarkably fast!) skater in bike traffic recently, and people always give them a bit more space. (Actually it was a mixed bike/pedestrian path still in a park, but bikes try to dominate it and use it as their main thoroughfare.) Bikers would probably get annoyed if skaters try to claim their extra wide space in the most crowded bike traffic, though.
Bikes and pedestrians are harder to separate. Pedestrians can go everywhere, and especially tourists have a tendency to not watch out when they're crossing a bike path, or even stay on the bike path for no good reason.
The worst place is behind Central Station, where a heavy flow of pedestrians from the ferries and the station has to cross a continuous flow of bikes on the bike path, while bikes from the ferries try to merge into the already chaotic traffic. We really need a bridge or tunnel to keep bikes and pedestrians separate there.