I understand as well! Teeth and bathes for my one child is a battle, and possibly she is on the spectrum side! Actually, I agree with being as clean as possible and our kids should be too! I also didnt/dont like getting comments from others about these issues because as a mom, I feel I have failed the basics for my kids. And with bad hygiene, the possible medical issues scares me for them. I really understand but, like all the others said, yes, it seems to be an issue and we can do everything we can to convince/help our kids, but at a certain age, Im trying to learn to leave it alone, if parents make comments I would always defend us! But why defend us when we are doing the best to care for them...so .. as much as it hurts us.. I have to let my kids hear it from strangers. I want to protect them but... theres only so much I can do without battling it out daily. They dont know what is going on in our family.
I tried not allowing them to go to school/ outside etc with no baths and sometimes it works and they shower and brush their teeth. But most times.. well, Im still learning. So I will take everyone's advice for you for myself as well! Hugs and good luck.
(interesting about the toothpaste flavors!)