AIBU park issue

[snowbellsxox]

Long story short, we went to the park today me and my two DSs (4) and (1)
DS1 aged four went down the slide and there was a little boy playing at the bottom and putting mud onto the slide (probably around two years of age) whilst his mum sat on the bench talking to her friend the whole time. I had forgot he was there and when my son went down the slide I said firmly to DS to check nobody is at the bottom before going down and that the child could have been hurt. The child's mother came over and just sort of looked at me which I found annoying and removed her son .. I have reflected and looking backher child shouldn't have been playing there and it wasn't my sons fault. AIBU? I feel bad that I sort of blamed my son at the time :( it's really eating me with guilt and I'm annoyed at the other parenting/parent

Honestly, it's right that your son should look before sliding if he doesn't want to crash into someone at the bottom.
Also his mum did the right thing moving him away once it was clear the slide was in use by other people.
It does seem strange that she didn't say anything but either way, the situation was dealt with.
The whole thing about blaming and fault is not helpful and is a bad lesson for your child, not to mention it's stressing you out because you have to make instant judgements. Actually, most times the contributions are from all the people involved and it's rarely entirely down to one person. And even if it was, it doesn't help to assign blame.
Take care.

I’ve got a 2 year old. I watch him in the park because he’ll do what toddlers do and get himself into a wide range of silly situations.

I certainly don’t imagine that the 4 year olds in the park are diligently checking for stray toddlers as they charge around and go down the slide. Because they’re 4.

My daughter stood at the bottom of the slide and I couldn't get to her before another child came tumbling down. The parent of the other child told their child off for sliding into my child. I went over to the child and said it wasn't their fault, my daughter shouldn't have been playing at the bottom of the slide. I felt awful the other child got told off when it was my child who got in the way/ me who didn't get her out of the way in time.

I don't think this is your sons fault, the playground is the Wild West, it's impossible to avoid kids colliding and I'm sure two minutes later that other kid would have done the same thing and slid down into some other unsuspecting kid.

Yes, don't overthink this. It's definitely up to the parents to make sure their toddlers are out of the way of the slide, but it's also a good idea to teach kids to look out for the bottom of the slide to be free. You haven't done anything wrong, nor should you feel guilty for reminding your DS about safety.