After some opinions about forcing children to share?

I have 2 boys n ususlly when we go on school run 1 will ride the go kart and 1 the scooter can't get 2 go karts as dont have the storage space i do it were 1 rides it there 1 rides it back but my 5 yesr old has a friend at school he walks back with every day as they live round the corner but every day his friends shouting at my children depending who is on it that time but they usually shere anyway so i dont have to say anything but now its every single day there getting fed up they wudnt mind sometimes but says its not fair who ever rides it back that day has to always give it over to there friend half way i have left them to it not said anything let the kids resolve it but then there friends parent asks my child to give there go kart to there friend until my child to gives his go kart over then suggested i dont bring the kids go kart anymore so i suggested he brings his child scooter for his child but that still doesn't happen what im getting at is im going in a big circle in my mind if i should speak to my child about sharing every day or if i should tell him he hasn't got to everyday just sometimes which may make it abit awkward between him his friend me and his friends parents not sure whats best what do you feel is right my children are just getting fed up of it being every day or they wudnt mind usually like when he comes round they share alk there toys we go there and there friend hardky shares anything says thats mine to everything and there moaning wvery morning that they dont get to ride it all the way home at all anymore (we literally live 5 mins from school) so only on it for 2 mins when have to share cus his friends shouting that he wants the go kart and they will always hand it iver when his parents ask cus my children are shy what would you all do to solve it not sure whats right forcing my kids to share every single day or just telling them and there friends parent he hasn't got to share every day he can have some days just riding it himself

After some opinions about forcing children to share?
Post Opinion