Legal aid is when someone who cannot afford a lawyer gets help from the government or other organizations to get legal advice or representation.
Imagine if you wanted a toy but you didn't have any money to buy it. Legal aid is kind of like your parents giving you money so you can buy the toy.
Some people need help with legal things like divorces, fights with their landlord, or even criminal cases. These legal things can be very hard to deal with, and sometimes people need someone who knows the law to help them figure out what to do.
Legal aid is important because everyone has the right to fair treatment under the law, even if they don't have a lot of money. Legal aid helps people who don't have a lot of money get the help they need to solve their legal problems.