Why are people with no education past high school 2.5 times more likely to be lonely?

I feel like 80% of my personality was moulded by my university degree. I was a bad tempered rebel before I started university, and now I’m calmer then a german shepherd. Through university, I developed the personality I need to build my career.

Why are people with no education past high school 2.5 times more likely to be lonely?
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