u/Usual-Jelly-222

I started playing a couple months ago with my daughter and I've been able to get some pets I really like with her help and by spending Robux to get pets to trade etc. I don't trade very often I prefer to grind but I want a scare bear so someone offered it to me and said my offer wasn't fair so I told her to pick from my backpack. This is what she picked and said it was a fair offer so I looked it up bc I don't know values too well and I've learned from previous mess ups that I should check first. I said no thank you since I was too over and she replied "learn values ppl". Is this normal? Am I missing something? Trading stresses me tf out sometimes