We become who we usually hang out with. Though i'm a leisure touring cyclist i find myself in the better 33% in the 2 leisurely groups i have rode with. Upon riding with a group that rides for improving their endurance & speed i find myself in the bottom 33%.
Attrition rate in the training group riding more or less fixed training routes is higher as many newcomers are scared of the higher standard after a ride. Few carry on. Staying put with the old standard is more comfortable.
This peer group standards pervades many aspect of our lives. On financial aspect, if you hang out with spendthrifts you'll eventually get poisoned by their spendthrift ways & become one. Naturally i'm wary of these type of people & keep a distance. I don't usually judge people by the way they dress. I've seen a multimillionaire use an ordinary cellphone & another millionaire shop for groceries at a normal supermarket instead of the upscale Cold Storage supermarket.
Choose your peers with care. If necessary it is better to be alone than with undesirable company.