You have three VERY different questions here. The first is should your grandchildrens' babysitter help potty train. YES. If the babysitter spends a considerable amount of time with the child, they should be helping to potty train by making sure he tries to go at least every hour. However, it is not something you should do by yourself for a couple of hours--potty training is a 24/7 responsibility and you don't want to frustrate your grandson with inconsistencies (no matter how good intentioned). The parents also need to be working on potty training at home.
The second question is where the problem lies. Should he be potty trained by now. That really depends on him. Yes, most kids his age are either potty trained or are potty training, but if he is not willing to work on it, you can't MAKE him go. Pediatricians like to give a "let him set the schedule" approach nowadays to avoid the mistake of them starting and then wanting to stop later or even worse, being scared of going poopy on the potty and then having constipation issues from holding it in. That being said, there are ways to encourage him to WANT to go. Get potty dvds (my kids loved Elmo Potty Time), take him to the store and have him pick out his very own "big boy" underwear. Put him in pull-ups and help him to notice when the "helicopters are gone" or "feel when he is wet" depending on his learning style. Buy him a special potty watch (I am a huge advocate for the potty watch because it trained all 3 of my older kids in a week). The potty watch is basically a timer they wear on their wrist which you set and it tells them it is time to go by playing music and lighting up. My kids loved it. You can get them online fairly cheaply at pottytimeinc.com. Make everything associated with going potty positive. Eventually he will WANT to go and be proud of himself when he does.
Your third question is about learning social skills at daycare. That is actually being proven to be false. New studies show that the opposite is actually true. I know from personal experience a friend of mine has a son (only child) who was fairly well-behaved until he went to daycare. He then began hitting, talking back, saying things that he learned in daycare that he didn't hear at home, etc...and he was only there for 2 days a week.
Here is an excerpt from an article I read recently:
Being in preschool for more than six hours a day can be damaging to a young child's social and emotional development compared to children who stay home with their parents, researchers at the University of California-Berkeley, and Stanford University have concluded.
The new, government-funded study, which involved more than 14,000 kindergartners across the U.S., found that a moderate exposure to preschool helps youngsters develop their cognitive abilities in pre-reading and math. But extended absence from their parents also appears to heighten behavioral problems, such as a lack of cooperation, sharing and engagement in classroom tasks, most notably among kids from more affluent families.
On average, the report found that the earlier children enter preschool, the slower their pace of social development, while cognitive skills are stronger when children are first enrolled between the ages of two and three.
"A child's success in life and academic performance hinges on their healthy social and emotional development. Young children need to be at home bonding with their mothers and fathers."
(This article is online at:
http://www.preschoolingathome.msen.org/Berkeley.html
The original news report that this was based on was:
http://www.berkeley.edu/news/media/releases/2005/11/01_pr... )
Hope this helps....