Even if he means well, he could still frighten some people.
However, someone else could put on a similar costume and pull kids into the sewer.
Unfortunately, in this day and age, anyone in such a costume should not be approached by anyone alone. Safety in numbers is the best way to be. No one in their right mind would want to be taken underground into a shit-pipe where IT the clown can party with you.
"A menacing clown said to be stalking the streets of a sleepy village in Scotland weeks before Halloween is daring police to catch them.
The clown, dressed in a Pennywise-style outfit complete with a mask and make-up, has reportedly been terrifying locals in Skelmorlie - a village of around 2,000 people in North Ayrshire.
A Facebook account has been set up for the clown under the name Cole Deimos, with a video uploaded to the page daring police to hunt them down."
If this bloke wants you to pull his finger, he just might pull your pants down. Don't submit to IT and his Bull Shit!
This urban_clown phenomenon isn't just another urban+legend. It has been going on for several years.
https://en.wikipedia.org/wiki/Evil_clown#Origins
https://tvtropes.org/pmwiki/pmwiki.php/Main/MonsterClown
https://clownopedia.fandom.com/wiki/Monster_Clowns
https://paranormal-intersection.blogspot.com/search?q=monsters
https://paranormal-intersection.blogspot.com/search?q=urban+legends