Child comparison

Quick backstory my older nieces and nephew have kids of there own and I had my daughter at 40. My daughter is in the middle of all of my greats.

Occasionally I’ll get comments like this child was talking at this age or that child was walking at that age. My daughter is two and has show some signs of potty training but not a lot. I was just told that one of my greats (who is younger than my daughter) is already using the potty seat. (They were putting baby on the potty seat as soon as baby could sit up unassisted)

It hurts me when I hear things like this.