I'm not sure if I can fully say, since I'm 20, I haven't dealt with certain issues that come with aging. My opinion for now is that unless in drastic situations, you need to learn to love the body you're in- and feel beautiful in your own way. Anyone can find flaws in ones own appearance and want them changed. I don't want this to come out wrong, but I consider myself an attractive person- not totally due to my physical appearance. I'm really outgoing and have a kind of crazy personality, I've learned to play up my big eyes and cute cheeks. I work out so I'm healthy and happy with my body ( took a long time to acheive that.) I take extra time to do my hair in the morning. I have teeeeny tiny boobs. ( I'm barely a B since I've lost weight.) There have been times when I've been like "ugh, I just wish I could get these little guys some surgery have have a nice big chest!" but......
Then I asked myself why need large breasts to feel womanly and sexy. Just because our culture endorses breasts that look like cantaloupes(sp?) or inflated balloons doesn't make them beautiful. The media also tells me that I should be so thin I look like I'm starving.... if having the perfect body means slicing open my chest and having large forgeign objects placed in it- and then suctioning any small amount of fat from my body... well then count me out! Yes, sometimes I wish my nose were a little smaller, my tummy a littler flatter, my etc... but having multiple surgeries isn't going to give me self-confidence, it's just going to make me insecure about something else.
Still, this is
my perspective. I have no idea about the psychological affects a plastic surgery may have on someone else. I guess I became really disgusted with this whole kind of surgery when I watched an episode of Dr. 90210 on E! A teenage girl was going in for her second plastic surgery ( she previously had an rhynoplasty..sp?) She was getting breast implants. I felt so sick/sad when she was talking about her new chest. She was like..."They're so cute and they make my shirts look so good. My boyfriend loves them. Some girls don't need big boobs because they're pretty...people like me need them." I was so disheartened. I guess I have a hard time seeing plastic surgery as something more than glorified self-mutilation- but not in all situations!
If you just want your breasts to return to normal after children, I see that as a totally different situation than a teenage girl wanted her chest inflated for some kind of dillusional quest for self-confidence.
I don't mean to offend anyone with my views- just thinking out loud. and I honestly have no idea how I'll feel about it in the future.

PS. if any of that came off as being overly judgemental & all high and might, not my intentions!