To what extent is it natural for a three-year-old child to exhibit excessive attachment, kissing, and hugging towards a young woman who is not his mother, and what are the Sharia-compliant guidelines for such interaction?

A five-year-old child has no desire nor does he understand its meaning. The Shariah has permitted a woman to display her adornment in front of him, based on the Almighty's saying: {or children who have not yet become aware of the private aspects of women}. There is no objection to kissing him or allowing him to kiss you, as long as it does not arouse your desire. The jurists have stipulated that a woman is not obliged to cover herself from a non-discerning child, so there is no objection if he touches your body.