In reply to libertytoday:
Lots of sports exercise many of the muscles used in climbing, i.e. core, back and shoulders (for example gymnastics, swimming, martial arts), but I would say that very few, if any require the specifics of grip and finger strength in the way that climbing does.
Finger strength, footwork and general technique are the pillars of good climbing. Your fingers and arms will quickly adapt to the stresses, although getting strong fingers can take many years. You will see good progress from working on your footwork and technique will develop naturally. It's often useful to watch more experienced climbers for tips.
Finally, 37 is definitely not too late! Climbing is an individual challenge, where you set your own goals and targets, not a competition with anyone else, to that end, people of all ages, abilities and dispositions can and do enjoy it.
Good luck, I hope you continue to climb!