Administrators have full control of the content they accept and they decide whether sensitive content (violence, pornography etc.) is displayed by default or not.
Bandwidth: can be mitigated using <a target="_blank" rel="noopener noreferrer" href="https://docs.joinpeertube.org/admin/following-instances#instances-redundancy">PeerTube redundancy system</a> and cache servers that serve video static files in front of your PeerTube instance
Being free doesn't mean being above the law! Each PeerTube hosting provider can decide on its own general conditions of use, abiding by their local laws.
