PPL lets you legally fly small private aircraft for personal or recreational reasons. It does not permit you to fly commercially so you can't earn money by flying just with PPL.
PPL gives you a strong foundation in flying skills and aircraft handling. It's a first step into aviation and helps you learn basics like navigation control and air regulations.
You get personal freedom: you can fly privately for fun or hobby If you love flying it feels like fulfilling a dream. Many people pursue PPL simply to enjoy flying small planes.
Having PPL makes it easier to upgrade later if you want to make flying a career you can go ahead for a Commercial Pilot License (CPL) after PPL. That means PPL can be the first step not the final end.
With only PPL you cannot fly for pay. That means you cannot join airlines or get regular pilot jobs just on PPL. Job opportunities remain very limited mostly small charter flights flying clubs or private usage.
The cost of obtaining PPL is not cheap. Even though it's just private license training involves expenses (ground classes flying hours medical certificates) and many students worry if this investment is worthwhile when salary earning is not allowed yet.
Because job opportunities are limited you might end up needing CPL (or further qualifications) to get real career benefits. So if you only do PPL there's a risk that you may not get good returns for the money and time spent.
Someone might worry about PPL because of limited earning potential limited job roles and the cost involved. But if you join PPL with realistic goals like learning to fly for passion or aiming to upgrade to CPL later then PPL offers a valuable foundation and a chance to understand aviation first hand.