When are the best times to get dimpleplasty (e.g. does age matter at all?) and what are the possible risks involved?

I've always wanted cheek dimples but scared of unforeseen circumstances. 1. Is it better to get it done when I'm younger or older? In my mind, the 'scar' from the surgery may heal itself better if I get it done now (younger skin), making the dimples not as visible as they could be. 2. Does dimpleplasty accelerate the aging process somehow? 3. I plan on losing weight, maybe around 15-20 lbs. Is it better to wait until I reach my goal weight before getting dimpleplasty? Thank you in advance!