Why then force these vaccines onto children who don't get serious symptoms in the first place?
Because anyone who catches it can spread it to others, even with only mild symptoms, even if entirely asymptomatic.
Having the vaccine doesn't make you immortal, it doesn't make you immune from all harm, no-one ever said it did... but it protects you very well.
In other words, people are so scared of the dreaded wirus that they will put kids in harms way to protect themselves.
This reminds me of the politician who was doing a photoshoot kissing a baby, then when a sniper started shooting he tried to used the baby as a shield. It was caught on tape (because it was part of some movie.) Anyway, I've had about enough of you 'virtue signaling' assholes. You guys are contemptible, spineless, and disgusting.