I was 41 when my kid went. It happens, you have more life experience than them that’s all
I had my youngest at 16 
I felt the same way but honestly were all just parents
I’m in my 40’s……my children range from 21 to 7 we have 4. I was a young mom and an old mom. Let me tell you there was way way way more judgments when I was a young mom I wasn’t even that young I was 20 with my first. People were rude af when I was young they’d make shitty comments to me ask me stupid questions give me dirty looks. It upset me a lot!! No one has ever said anything about me being an old mom with my youngest. A couple dirty looks by those super young moms but my resting bitch face game is strong I am not a people person….i think my body language conveys that well so the dirty looks might be more caused by that then what others think my age is. What makes me really awkward is when I could be my kids teachers mom
You are just fine mama. Don’t let something as silly as your age, stop you from enjoying these moments with your kids.
I’ll be 41 when mine starts kindergarten let ppl think what they want
This is what success looks like. It’s a happy landmark. After what you have faced and overcome this is a day for you to feel proud not anxious. Who cares what other people think! It is a day to be proud of, to celebrate.
There will be other parents there your age. I was worried too but then realized I wasn’t alone lol
About to be 38 here. Have a 15 year and a five year old. I feel like a young parent with one and an older one with the other 
I was 37 when I had my only child. Many older parents now
I’m a bereaved mom. My oldest is 9 and my rainbow baby is 6. I am 43 & no longer with their dad, although we coparent. So being a 43 year old bereaved single mom, I can guarantee you no f***ks are given on my part if someone feels the need to judge. Unless they’ve walked a step in my shoes, there’s not much they can say that can get under my skin. Enjoy these moments because your daughter is going to start kindergarten one time in her life. You’ve got this, momma. 
My daughter is in the same boat. She had kids later in life. I don’t see an issue. They’ll probably want you to be the class Mom, lol.
I’m 43 and my daughter is just staring Pre-k this year. I struggled with fertility as well. I think lots of parents are older these days. Try not to worry about it.
Omg this is me im 38 and have a kid going to kindergarten… I also have a daughter that’s going to 12th and my older son is going to 9th grade…
I’ll be turning 38 next year in April. My daughter will start school next year in Feb. 3 years later I’ll be doing it all over with my son