Alot of people have the urge to do good and "bring about the change" or work for betterment of people.Alot of young passionate people amongst us have that desire to work for humanity"when they grow up".but that is the question :when does that"growing up" time comes?what time it specify?when u are OLD and don't have energy ?
My point is not to discourage anyone .Yes ,we wish to have adequate resources before we start a welfare work but not everything requires money.
Volunteer, help where and when you can. Spend time with people who would need your attention. Believe me, sometime a person in pain only needs you to listen to them.
Teach to poor young children.even that is a sadaqa jariah.
Donate blood if you are healthy young person,the patients of blood diseases need it more than your money!
So you don't need to GROW UP to do what you want to do.Do it now when you are young energetic and full of ideas and have time and health.