At what age is it most effective to receive a lifting procedure? Is it okay to receive it for preventive purposes?

Lately, I feel like my skin elasticity isn't what it used to be, so I am looking into lifting procedures. I am wondering at what age is best to start. Some people around me say it is okay to get the treatment even after the sagging has become severe, while others say it is better to start consistent preventative care in my 30s or 40s, so I am conflicted.

For those who have actually received lifting procedures, at what age did you start? I am also curious if there was a difference in satisfaction between starting for preventative purposes and receiving treatment after skin sagging had become noticeable. I would like to know how much your skin elasticity or facial contours have changed, and whether the changes were noticeable to those around you.

I am also curious if the recommended lifting procedures vary depending on age or skin condition. Among the various treatments such as Shurink, Volneumer, Ulthera, and Thermage, I would like to hear your experiences regarding which procedure was the least burdensome for first-time patients while providing high satisfaction.

I would appreciate it if you could share how long the effects lasted after the procedure, how often maintenance was recommended to maintain the results, and your satisfaction level relative to the cost. Please share your honest review and advice that would be helpful to someone considering a lifting procedure for the first time.