A rough life at sea on board tight quarters, it must have felt like a blast of adrenaline and a a sense of freedom flying from ship to ship. But most of the pirates couldn't swim. Modern kids with their beginner's swimming insignia probably are stronger swimmers than any a pirate who went to sea ever was.
Often the 'pirates' were sailors hired by monarchies to plunder their enemies' treasure chests. "I don't think much of our profession, but, contrasted with respectability, it is comparatively honest.". (The King, Pirates of Penzance)
And many a pirate had never set out to be a pirate. Some were just kidnapped and set to sea. From there there was no going back to 'normal' life, because once you'd been forced into piracy, you could be hung for piracy.