I can only speak for myself - I have no children and an incredibly supportive husband.
Having my excess skin removed was LIFE CHANGING for me. Since I lost over 225 pounds, my skin LITERALLY hung down to almost my knees. It made things so difficult - I don't even think I realized how terrible it was until I was without it.
I hate my tiny saggy boobs and my wrinkly thighs - but those are cosmetic, not FUNCTIONAL problems, so for me, I won't take on that cost - at least not now.
But the stomach? Yeah, that interfered in my daily living.
My recovery was really easy - I could do MOST things for myself - like make a meal and use the bathroom - only a few days after surgery. So apart from the first few days, there wasn't a huge burden on my husband. I also had sick leave so I got paid the 3 weeks I was out.
This has to be a very difficult decision for you - I wish you luck!