Honestly this show makes me so happy to watch, it's so wholesome and the human characters never annoy me like some sanrio productions, it always feels like the writing is lazy in other shows like "We have to add humans to make a show, let's name one Jane and the other one John".
This show on the other hand has amazing writing, and amazing morals it does have crushes/dating and there is a tomboy character that looks Male, so if you're conservative maybe this show isn't for you/your kid, but if you like sanrio this is amazing show to watch with your child before bed or alone. The show offers a full story with no cliffhangers in each episode and it's great to just watch and let your mind unwind with each story, it's always so well put together and constructed with every single detail and the art style is nostalgic for those early anime fans. I recommend this show to all my friends and family it's so cute! Short answer is it's very children friendly.