The photos show significant skin laxity and cellulite/texture changes along the inner and outer thighs, with only some removable fat. Liposuction can debulk fullness, but it does not reliably tighten skin; in an area with this degree of laxity, aggressive liposuction can make hanging, waviness, or crepiness more noticeable. At 55, skin recoil is typically less predictable, so I would expect contour improvement only if the lipo is conservative and the goal is modest reduction, not a tight thigh. The key exam is the pinch test: how much of what you see is fat versus loose skin. If most of the concern is skin laxity, a thigh lift is the procedure that removes extra skin, but it trades that improvement for scars and a longer recovery. Energy devices may give mild tightening in selected patients, but they will not correct substantial laxity. See a board-certified plastic surgeon for an in-person assessment of inner thigh, outer thigh, knee area, and skin quality before deciding; sometimes a staged approach is safest.