Am I dumb for not knowing how to tie my shoes?

Ok so I'm 17.
& before you go crazy I do know how to tie my shoes, but I don't know how to tie them "properly"

Its hard to explain how I tie my shoes but I'll try & explain
I put each lace in "bunny ears"
& I tie the bunny ears into a knot. It might sound complicated but it's actually very simple...

i found out I didn't tie shoes properly when my mom asked me to tie her shoes, she saw the way I tied them & she was surprised..
she looked at me with disappointment, you all know that look your parents give you when they're disappointed..

Do you think I'm dumb for not knowing the proper way to tie my shoes?
Yes you're dumb
You're not dumb.
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Am I dumb for not knowing how to tie my shoes?
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