Wtf is wrong with our society!!!

So my elder brother works from home and rarely goes outside... But we oftenly go for late night walks and disscuing, laughing and enjoying each other's company... We siblings are more like friends, but whenever we go for walks, few uncles or aunties stare at us like we are some nibba nibbi type, also few creeps do eveteasing, and it's too embarrassing for me.. . Can't be this possible that a girl and boy roaming together can be something other than couples.... Meanwhile when I went to Delhi with my brother there wasn't anything like this...