isize law flaws

[Iamnotloobrushphobic]

I am in the process of buying an ERF seat and have chosen one but I am perplexed a little by the new isize law. The guides on this law suggest that non isofix rear facing seats will stop being manufactured from 2018 in order that all seats made will comply with the isize law. Have the law makers not realised that not everyone has isofix or if they have multiple children they might not have enough isofix points (some cars only have 2)?
Are these people supposed to buy new cars?
Wouldn't it be better to still manufacture a limited range of ERF belted seats?
Surely not manufacturing belted ERF seats will leave some people with no choice but to buy second hand seats that are compatible with their cars.
I understand that isofix removes fitting error and an isofix seat is safer than an incorrectly fitted seat but belted seats are just as safe as long as they are fitted correctly.
What on earth are people without isofix suppose to do?

I don't know the answer to your question, although I've thought the same as our car doesn't have isofix and like hell can we afford to replace the car just to get it. Belted erf seats have a higher weight limit than isofix from what I've seen from my research when buying for dd, and they are often cheaper too. I don't really see the point in isofix over belted seats tbh.

We have isofix but have decided to buy a belted erf seat because the weight limit is higher and it also gives us the flexibility of using it on the seats without an isofix point if we choose to do so. The seater have chosen is £350 so we haven't chosen it based on cost saving but we do believe it is a very safe seat and will meet our needs. I wouldn't be able to buy it in a few years time though when they stop making belted erf seats.

I didn't think there was a date given for stopping making belted non Isofix seats and took it that the guidelines will run alongside each other for the foreseeable future

I didn't think there was a date either but the Isize guidance websites suggest that they will stop making belted erf seats from 2018. They state that it will still be legal to use them beyond that date and there are no plans to make belted seats illegal but I can only foresee problems if nobody is making new ones.
A correctly fitted belted erf is as safe as an isofix seat and much better than any type of second hand seat.

The other issue is that not all cars isofix points correctly align with all car seats. I know some people had problems finding isofix seats for the older Nissan quashia (sp?) because the isofix points are a little high.

daughter you can get 'fillers' from your vehicle manufacturer for the storage compartments which enables a car seat foot prop to be used.

The main issue is, as you've pointed out, what happens to people who don't have an Isofix car. Ours isn't and we have no intention of replacing it unnecessarily any time soon.

I thought the isofix and rear facing requirements are up to 15 months. So could use a belted erf seat after 15months? Would be very annoying if your DC grew out of infant carrier before then, especially as a child who would do that is more likely to then need a harnessed to 25kg seat. It seems to be as clear as mud, very badly organised/promoted/thought though so far.