It does not take long to have your participants sign a quick liability form. It will cover you in the event that someone attempts to take action. Also, many parks may require you to pay a usage fee. This was an issue in my community as more and more trainers began to use open spaces.
If this is the case having liability waivers will be a must.
Having them sign waivers actually adds a level of professionalism as well. The assumption is that your program will grow and you’ll eventually have to incorporate them, so why not start now.
Lastly, it will help you create a database of client information which will help you keep them informed as to new and exciting projects you create.
Hope this helps,