I'm at the end of my tether with my nearly 4 year old. At nursery, she's got a best friend who constantly encourages her to do naughty things & not listen to the teachers. She'll copy everything this kid does and this kid turns 5 this year so there's a big difference between them and naturally, I know young kids will always copy bigger kids but it's got to the point where she encourages my one to do dangerous things.
As well as spending all week together at nursery, by coincidence, they do a music class on weekends so that's 6 days a week they see each other. One time after music class, she told my one to run on the pavement with her and there's often fast cars and my one stupidly ran towards the road and luckily, I managed to grab her in time before a car drove past. Her mum was apologetic (she's super lovely). Another time after music class, I held onto her hand as we walked to my car and this kid whispered to her: 'let go of your mummy's hand' and my one actually tried to shake my hand off! I held onto her hand and said loudly so that the kid and her mum could hear: NO, you hold onto my hand please. The kid's mum realised her kid said something to my one then picked her up to avoid any further encouragement.
At nursery, the teachers have noticed whenever this kid isn't there, my one will play with others and will behave and listen. When this kid is in, my one will play up and follow her again.
I've tried explaining to my one calmly not to copy everything this kid does but she doesn't get it. I get so angry with her but I know she's still young and won't fully understand. What do I do? They go big school this year and their first choice is different from ours but their second choice is our first choice so I'm concerned. Even if they do end up at the same school, there's an option for me to request for them to be in different classes and I know the nursery would agree too, as they advised I look for a music class elsewhere so that my one doesn't get influenced by this kid. AIBU here?