Yes, they are. Babies are learning machines. They are learning more, more quickly, than at any other time in their lives.
That's how they develop from tiny eating/pooping machines, to small humans who can hold a conversation, in less time than it takes me to get round to replacing the batteries in my doorbell.
That's why early trauma, or conversely early love, can shape an entire life.
Leaving aside the fact that many of the children in these videos and pictures are actually a fair bit older than that, even infants are learning all the time.
Events like this are part of a massive campaign to breach safeguarding boundaries, to bring children and sexualised acts into close proximity, and to train parents and children to turn off all of their inbuilt 'hang on...' alarms. They are insidious and extremely harmful.