I always thought I wanted to get married and have kids but spending time around family members who did makes me question my wants. Is this normal?

I always felt like a bit of a failure because I've only been in one relationship that lasted two months while my cousins and siblings have always dated and many have recently started families. I used to be a bit envious but as time went on, I realized I wouldn't trade places with any of them. They seem less satisfied with life and more stressed and have less time and energy to really enjoy life. Is this strange? Does it suggest I might be selfish.

I always thought I wanted to get married and have kids but spending time around family members who did makes me question my wants. Is this normal?
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