[Grammar] Having worked with children myself

[yi-ing]

1)Does the bold part mean "because I have worked with children myself, I have learnt that clear expectations and boundaries are necessary"?
2)What does "push against" mean? (I couldn't find any definition in dictionaries.)

Having worked with children myself, I have learnt that clear expectations and boundaries are necessary, and it is important to be able to say ‘no’ to children when they misbehave or try to push against these boundaries.

Source : http://ielts-simon.com/ielts-help-and-english-pr/ielts-writing-task-2/

 

[teechar]

1)Does the bold part mean "because I have worked with children myself, I have learnt that clear expectations and boundaries are necessary"?

Yes.

2)What does "push against" mean? (I couldn't find any definition in dictionaries.)

It means to try and extend/break those limits/boundaries.

 

[newkeenlearner]

Does "worked with children" mean that "have their own children", or "work in a kindergarten, for example"?

 

[GoesStation]

Does "worked with children" mean that "have their own children", or "work in a kindergarten, for example"?

The latter.

 

[Rover_KE]

They've worked in a kindergarten or school.

 

[yi-ing]

2)What does "push against" mean? (I couldn't find any definition in dictionaries.)

It means to try and extend/break those limits/boundaries.

Does the following definition match the meaning of "push against something"?
https://idioms.thefreedictionary.com/push+against

 

[tedmc]

I think it is the idiom "push the boundaries", which, in the context, means putting one's patience to severe test.