Finishing kids meals

One thing I've noticed is that as a parent, if my kids don't clear their plate, my husband or I tend to finish it for them. For example, we were at a birthday party today. One had a hot dog, the other a burger. Neither ate the whole thing and I ate both. Then I finished up the cake too even though it made me feel horrible. My reasoning? I felt it was rude to be at someone else's house and waste their food. Mind you my girls are 5 and 3. They (especially the 3yr old) are horrible food wasters. That's just typical of that age. So to be polite to my neighbors I put junk food into the healthy body I am creating.

How asinine is that?