I love running, but my maximum speed seems to be about 5mph (12 minute mile).
I've got no desire to be fast, I just do it for fun, relaxation, and to burn some calories. And even at my 12+ minute mile pace, I end up taking walking breaks, especially uphill, since there are some steep ones around here.
I've run two 5Ks, and my times were 38 minutes (no walking breaks) and 34 minutes (with walking breaks).
Sometimes I feel awkward walking, because I'm afraid people will think "that girl is young and not very overweight, she must be in terrible shape or really lazy if she's only walking," or when I take walking breaks I'm afraid people will think I'm tired and out of breath just from walking. Even though I know logically no one cares what the heck I'm doing.
It's different if I'm wearing casual street clothes, but if I'm wearing my nice moisture-wicking workout stuff I feel like I need to run or everyone will think I'm crazy.