Are mid 40's and 50+ year-olds men the right range for a 36 year-old single (childless too) woman?

Sometimes I get matches and replies. They are mainly 10-15 years older than me. A couple of them were widowers too.

If I'm 36 years old (still look much younger than my age; always did), are those men good age range for a serious relationship?

Are mid 40's and 50+ year-olds men the right range for a 36 year-old single (childless too) woman?
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