Mid-20s, Neck Contour Concern: Platysma Laxity - Mini vs Full Neck Lift? (Photos)

I’m in my mid-20s and insecure about my neck/double chin. I originally assumed liposuction would fix it, but during a consultation I was told the primary issue is platysma laxity rather than just fat. I was advised that a neck lift would be the most effective option, which I’m open to, though a bit nervous given my age. I’m trying to understand what level of neck lift would be most appropriate in a case like mine. Would a mini neck lift be sufficient to address platysma laxity at my age, or is a full neck lift more realistic for noticeable contour improvement? I would really appreciate any input or advice.