Will this satisfy most mask mandates?

It will not satisfy most mask mandates due to being a costume mask. However there is no rule on customizing the mask so it can satisfy most mask mandates

Is it easy to talk in?

Yes it was easy to talk in, given the fact that I did tighten mine more to fit my face. It just gets a little hot after a while and one of the straps might slide around as you talk, but not excessively. Other than that I was having full blown conversations while wearing it.

Will this fit a young females face?

Mask may be a bit too big for a young females face. I am an adult male and I fit just perfect. I wS not really to happy with the mask because the adjustable strap was actually sewn on backwards so it does not fasten correctly. The nose was a bit pointy and th rubber material smelled. I am in the process of returning but they do not provide free paid shipping like other vendors so I have to spend to ship all the way to China.

Can it protect you from an airsoft bullet?

Well it's latex and easily bendable. It may very slightly reduce the initial impact of the bullet, but I don't believe that it will fully protect you since there are some parts of the mask at are thiner than others and the latex itself is not that thick.