roller skates ought to be called 'patins en ligne' in French, but the usual way is to call them skates / rollers / rollers skates. Hence roller skating is most often 'faire du roller' instead of 'patiner', which is outdated.
No it's not hyphenated: rollerskating.
Roller skating translated into French is 'patinage à roulettes'. An example sentence is 'Je suis sorti avec des amis de patinage à roulettes'. This means 'I went out roller skating with friends'. hay sexy bichis
Yes, roller-skating rink is a noun.
Roller Skating Child was created in 1977.
Roller-skate, as a verb, should be hyphenated. Roller skate, as a noun, is not.
I think ice skating
Roller skating rinks are not all the same size.