There are many things that can be done in the legal system which are lawyer-optional. Sometimes, it is unclear which things really require a lawyer and which do not. Other times, you just need some guidance to get the process going in the right direction or some follow-up advice as the case goes on.
There are other things that are just not a good idea to do at all, with or without a lawyer, even though they are possible.
In these instances, the advice of a lawyer for a consultation can be invaluable. You have one session, but can return, if needed. You do not have to commit to any Retainer Agreements. You get the advice you need and are on your way.
Be aware, however, that generally the "free consultations" do not provide much legal advice. They are marketing devices to get you to commit to hiring the lawyer.
If you have questions, consider scheduling a consultation.