Just about anyone can learn to paraglide. Training classes are not very strenuous, and it doesn't take any unusual strength or skill to learn to fly. In fact it requires about the same effort as you need to learn driving or cycling. But the pleasure of flying is to be experienced to be believed.
Paragliding is more about finesse than fitness. More about skill than strength which is why women often do much better than men because they don't try to fight the paraglider around. More important than physical conditioning, is being physically and mentally alert and prepared. To be a successful paragliding student and pilot, you need to be able to think clearly and to listen well.
What you also need is ‘time’. You might have a strong inclination to fly but to commit time to it is essential, and then the returns you get are phenomenal. To begin with the ‘Introductory course’ will take 3 days, a Friday, Saturday and Sunday.