If you want to read some funny comments and real observation (including why we need to be careful and caring when on skates), check out this little piece observing life in heaven, or hell, depending whether you love the little wheels. We need not be a nuisance of course, and plenty of other wheeled and non-wheeled folk are, but remember, we are a minority and thus often must meet a higher standard, or at least it helps if we do! As for the scooters (which I notice in parks parents are less likely to make kids wear a helmet when using!)....
48° 51' 24.0012" N, 2° 21' 3.5532" E