Having taken care of my Momma till she passed away at home and helping to take care of an elderly aunt and uncle, my hat is off to you. Well, thank you. Both my "moms" are very special to me. They have given and given their entire lives for their kids, now it is time to give back to them. I has fallen upon my husband and I to care for them in their declining years, but that's okay. It is the least we can do. :-)
I feel the same way - these people raised me and loved me and supported me in more ways than one. My debt to them is great. It isn't an obligation, its a priviledge to return to them a little of what they gave me.