Well, every hobby you can develope to higher level than any else. The best place Albert had at Olympics was 25th in his debut in Calgary. And bobsleigh and figure skating are totally different disciplines - one of them is so unpopular, that even team from Jamaica qualified for Olympics, the other is so developed, that only the very best skaters/pairs have an honour to be at Olympics. Alexandra had an opportunity to participate in competition being held in the atmosphere of Olympic Games, with all the Olympic protocol (I mean EYOWF 2015). She was also two times in Junior Grand Prix - the high level competition for skaters in her age. But, let's be honest, she was a weak figure skater - she had problems with double jumps, with single jumps she didn't get much point on that level. But neither Albert was a great bobsledder.
It all depends on what you understand as hobby. You can collect pins of some organizations and have about hundred of them, but you can have thousands of them and organize the exhibitions in museum. Both is hobby, the same hobby, but one of them is simply on higher level - due to time, needs and possibilites. To achieve something in figure skating you cannot start learning skating in early teens, you need to do it as a child. In bobsleigh the situation is different - on example of one Polish bobsledder, who was Olympian in Rio as a track runner and now he's aiming to compete in PyeongChang as a bobsledder, just after not even one and a half year of training this discipline.