Question about plugs

Hi, new to prostate play, just curious:

Are regular butt plugs necessary/recommended for using aneros toys?
Do you personally use butt plugs?
Would you personally recommend using butt plugs to train your anus anyways?

Asking because I’m considering buying a butt plug trainer kit, but not sure if it’s worth it

I hope this isn’t a common question. I tried using the search to find similar posts but couldn’t :p

Thanks!