Ryanair have announced that if you are travelling with a child 12 or under, you will automatically have to pay to reserve an adult seat next to them. This is to stop parents no booking seats, and then cabin crew having to move other customers around, so young children are not having to sit by themselves.
Don't like that, I'm good with not sitting next to my older ones, and they are fine with not sitting next to me.
It'd be handy if you could book just a few seats in your party and allow free for all for the rest, but I don't think Ryan air do op that for a group do they? It's all or nothing, or at least it used to be; be a while since I actually flew.