to think encouraging a child to wee in the street is inappropriate?

[HeyNannyNanny]

I'm upstairs in my house with the windows wide open to air out last nights fish and chips let in the lovely sunshine.
We live on a reasonably busy residential street.
I hear a family walk down the road (think its Mum, friend/sister and son) chatting to each other loudly.
Suddenly I hear the Mum say "right, I need to make you do a wee" (actual words) and then "trousers down".
I glance out the window to see the son (perhaps 4 or 5 years old) in the middle of the pavement with his trousers and pants around his ankles, holding his willy and weeing into a plastic tub the Mum is holding in front of him.
She's encouraging him loudly ending with "that's right. Now shake it. Well done."

I completely understand that children always need to wee at the worst times but AIBU to think in the middle of the street, in plain view with cars driving past and people in their gardens is just a bit off?

There are 2 pubs which are less than 2 mins walk away, as well as plenty of countryside areas to surreptitiously wee in if its an emergency.

Ds has a problem with his kidneys. We once had to do a 24 hour collection if you miss a wee you have start all over again. Also although he is 7 now we still have to remind him to pee regularly or he will start to get pain, so I can identify with this. Often get him to pee into a bottle to check what it looks like as sometimes it can have blood in.

My friend's little boy had a wee in the park against a tree, except it turned out to also be a surprise poo. She did pick it up and dispose of it before anyone asks

Yabu. Nothing to do with you and you have no idea what's going on or if there are medical issues. She's not doing it for fun, is she? Obviously she feels it's needed. The container impliea some kind of problem. As for going to a pub - a pub in my town hurled swearing abuse at a mum who asked if her 3 yr old daughter could use the loo (nice area, just horrible landlord), I would not use a pub toilet for my son unless I was a customer, I don't want him to feel blamed if the pub get angry etc.

If her neighborhood is being sullied and if people's genitals are being exposed in her road it is most definitely the OP's business.

Some people still have standards.

a pub in my town hurled swearing abuse at a mum who asked if her 3 yr old daughter could use the loo

That sounds like that pub landlord is a wanker and certainly isn't the theme of pubs here.
In my experience (and I'm a Nanny, so I've had a lot of weeing emergencies in my time) pubs, cafes etc are always really understanding when a child needs to use the loo.
As an adult I wouldn't expect free use of the facilities but its completely different when its the child.

And as for it not being my business, as the PP said - as its something most people would think of as a bit grim, and its literally happening right outside my house - it is my business.

I think there is a tiny tiny tiny chance of being some kind of unlikely medical problem that a child must wee right here right now this second and not waiting 2 mins to a more appropriate place.