It is difficult to answer this "question", because there are so many archery supply stores around the world, and the list is continually changing every day. Probably the best way to find an archery...
If by aim you mean motive then the motive of archery like any sport is to train ones body both physically and mentally. Archery can also improve ones aim and hand eye coordination.
Yes because it's a fun hobby to do. But people might tell you what to wear, how to hold the bow, etc. But they just want you to be safe, so I guess its considered a leisure.