So from what I see, you are discussing the issue of diffusion of responsibility/the bystander effect. Both of these sound similar to me, because you can start with “would you try to help at all” and move to “under what circumstances would you try to help”. Are you trying to “inform” your audience about it? Are you raising awareness about the issue? I highly recommend that you make your PSA not only be informative, but also lead to behavior change. The topic is good, but you need to make it specific, make it appeal to a wide audience, and include “novel” solutions based on the concepts we have discussed together in class. I am more than happy to help along the way as you formulate your ideas further.
it should contain visual aids( graphs, charts, tables)
here is the sample ppt