First you make sure little Johnny shows his parents the non effort he displays!
Second I had a player whose Dad coached and we worked and worked with him and
he was to scared to tell his Dad he didn't want to play! Finally, I would sit down with
Mom and Dad and the player. Be strait with them and firm about their childs safety
as your main concern. Make sure the player can express their desire NOT to play
infront of his parents. Nobody should be forced to play if they don't want too!

you could tell them, "Your child is having a hard time adapting on how to play", or you could also say, "Your child might not like this sport, they never lern, or accomplish anything, and they have a hard time to do so." because they might not want this sport...it depends.

Dealing with parents is the most difficult part about coaching youth sports. Hands down, no questions asked. Dealing with the parents who are pushing a kid who doesn't want to play is even more difficult. The parent is going to yell and complain and, in many cases, not accept the fact that their child doesn't want to play this sport. Translation, the parent isn't rational. And the child, a product of that environment, is most likely afraid to express their true feelings.

What it boils down to is that, even though you are enthusiastically teaching and coaching a group of kids for the love of the game, you also have to play psychologist with the parents. Some you need to finesse by doing things like explaining that little Johnny hasn't fully developed as much as some kids and may need some extra time or even time at an off season camp to help with the fundamentals. Others you have to stand up to them and just explain that perhaps this isn't the proper sport for their child.

What you don't want to do is say something like, "Johnny told me after practice yesterday that he hates football and doesn't want to play" because that is going to come back on the child at home.

It's a very difficult situation to be in. Over the years and the various sports I've encountered this numerous times and I have too many stories I could tell. Just manage the parents with care so that it doesn't come back at the child.

Tough one coach,I often found it's those parents that use practice a daycare, encourage them to participate in practice or the organization.