You can share information in whichever way you like, be it simply talking to the camera, or getting creative. Maybe your channel could have a comedic twist, artistic, musical. What ever you chose, I think this is a wonderful idea. Please link your channel so that fellow street team members can support it.
There are so many YouTube channels now that, even with high quality equipments and careful planning, you can end up with a channel that gets very few views.
For that reason, I just support the already existing animal rights channels/videos rather than making my own.
Best of luck to you though.
Interviewing people on the streets could make for interesting videos, if done right (maybe check out the late-night talk show hosts & try to mimic their interviewing and editing styles when they do street interviews, and try to figure out how they filter out background noise such as traffic).