I've asked similar before but have got myself all confused
DS is (just) 4 years old. 102cm, no idea on weight but slim
He is currently in maxi cosi 2 way Pearl in my car which is fine and looks like it will be for a while yet but I need one for mums car.
She has dyspraxia so I need something really really easy to use. Id prefer isofix as she wouldn't be able to belt a seat in.
She will only ever drive him at 30 mph or less on local roads less than 3 mile journeys.
Ideally cheap, but I can spend if I need to.
I assume a high back booster makes sense? If so I feel like a prefer a harness because I'm not 100% confident that mum would be able to position a normal seatbelt unless it was really easy. Are harnesses safe? Are seatbelts better/worse?
Help, please?