Covid and co parenting

[ThingsCanGetBetter]

Recently split from husband, quite a messy break up. He has my older aged 14 her choice and I have the younger aged 9. I’m currently back living with my dad, stepmum and sister.
I have my daughter every other weekend and vice versa. He is still going to work and she is at school, where as we’re at home all the time and homeschooling.
I’m not convinced he is following government rules, he has his new gf round a lot ‘support bubble’ apparently and us as a house hold are quite anxious that the kids going to and from is going to spread any symptoms etc.
I was thinking of suggesting the kids don’t go to and from for a few weeks until lockdown is reviewed? My ex is very difficult, selfish and twists everything.
Has anyone made this decision in withholding the children during lockdown?
Thanks

You really can’t do that. There is no end in sight for many weeks. Do you not want to see your older daughter for potentially months, for your children not to see each other, so you can try and dictate what your ex does or punish everyone? You’re both equal parents, you can’t make him do anything.

Plenty of people have used covid to disrupt contact. It’s not a good thing.

Yes of course I want to see my older daughter but can’t trust him to stick to the simple rules of lockdown which is why I’m asking for advice.
We was in a domestic relationship so no way am I dictating what my ex does, I’ve been on the other end of that for a while now so was just simply asking for advice

I had my daughter with me back in march last year when we thought it would only last 3 weeks (!!) And it was all new to everyone
However, now (and after then) no, I would not keep my daughter with me. Even in the above situation
I would keep the normal arrangement