The symbiotes have proven themselves to be one of the most volatile and dangerous species in the entire Marvel Universe. What began as a simple, but malicious, alternate alien outfit for Spider-Man has since evolved into some of Marvel’s most popular characters and stories. The symbiotes have long since been infamous for their ability to bond to living hosts and amplify their violent emotions and physical capabilities to superhuman levels. In the past the symbiotes always attached themselves to fully-grown adults, but in recent years they have started using children as their hosts. With events such as Planet of the Symbiotes to the symbiotes name, it might seem inevitable that children would become hosts for the ravenous aliens, but it still raises some harrowing concerns.
Source：https://www.cbr.com/new-symbiote-hosts-kids-venom-carnage-marvel-comics/
