I bought my son a 10/22 takedown for his 8th birthday last week. He's been shooting his brother's identical rifle for better than a year, displays safe gun handling habits, and has been elated to have his own rifle now. With my supervision, he's shot 3 or 4 evenings this week, and has about 400 rounds through the rifle now.
I put a vortex Sparc on it, and have changed out the factory stock for the magpul backpacker due to it's elevated comb. He's a big 8 year old, so the length of pull isn't uncomfortable for him, and he can handle the weight of the rifle shooting offhand.
On to the rifle- yes, it has the plastic trigger guard. And cycling the bolt felt a little rough out of the box. But, to my surprise, throu the first 400 rounds or so, it has been flawless.
More to follow- taking the wife on a date night!