Do you need to download an anti-virus for Android?

So my workplace is mostly iPhone users and someone asked me what kind of antivirus software I used on my Android, and I said "none" and he flipped out about how unsafe it was. Other people chimed in saying how all androids need antivirus apps and I've never heard of such a thing. I do have ad-blockers and a VPN but never downloaded an antivirus. Should I? If so, what would you recommend? Thanks lemmings, love you.