this might be slightly anecdotal, but.
My cousin's 11-12 year old son caught covid from a friend (zero to light symptoms), gave it to his sister who is 16 (moderate symptoms), his mother in her early 40s (moderate symptoms) and his dad in his late 40s, who has been in bed for 6-7 days. They also gave it to their 70 year old grandmother (the mothers mother) who is currently on a ventilator and I wouldn't bet money on her living.
so a, kids can get it, maybe they are less likely to get symptoms, or die but they spread it.
I am not afraid of covid, I am afraid of being part of the spread or hurting somebody I love or care for.
the possibility of having long term symptoms that would effect my day to day life for who know how long is another reason to want to avoid it and get a vaccine.