It's not unreasonable to want to home educate - it can have many benefits. It would be unreasonable to push forward without also considering the responsibilities and risks involved which, I think, should at least a bit daunting. I'm wary of either home or school education being painted as all lovely or all horrible.
Taking on the full responsibility for our children's education is a large task with a lot to consider. There are a lot of options of what to cover -- no type of education can teach everything, there are time and energy limits along with the limits of what we can teach and what our children will be able to handle while balancing the rest of their wellbeing. It is quite possible to give our children plenty of choices in their education, but we have to facilitate them having those options. Few home educating parents I know, myself included, manage match what our ideal would be within our actual families and limits and possibly even more so, those of us with chronic illness and disabilities.
Social isolation is a risk, even without a controlling parents involved. It also exists in schools, but as home educators we have to ensure we're facilitating socializing in a more proactive way. Yes, some home educators have very busy social calendars -- but that's was nowhere near a universal experience pre-COVID - the cliches and bullying and parental pressure in friendships that can happen in schools does happen in home education groups when they were running and now many groups and activities are closed. Schools reopening isn't going to change much for my home educated child (and our only other options are "inadequate" failing primary schools with safeguarding among other issues, at least until we move, so...).
It can be wonderful and I'm glad I chose to do it, but it is a big responsibility, some days that's heavier than others, and like with everything else, there are limits that have to be accepted.
Do I send my child to secondary school without the experience of primary?
I've two children attending secondary after being home educated for primary, and my oldest chose to be home educated until he could do GCSEs at college.
It really hasn't been an issue for them - they may have a home primary experience, but that isn't no experience of wider society. With two of my children having SEN, it meant they were allowed to focus on the basics for as long as they needed. I think they've benefitted from having additional time to develop without the competition of the classroom, from having me and others teaching them who are so open about our limits - we really bring in how we can learn from anyone, even dear old mum - and really, I think they appreciate school more.
When they were making the choice to move to school, I was clear that they were choosing the responsibilities of it too - the rules, the homework, all of it - unless something is actively to their detriment, I won't step in. They were also accepting the risks that it wouldn't be as they hoped - it's not like TV and it is a very different experience than I give - and they have to attend for a full term minimum if they start and they've all continued. We've had a lot of talks since DD1 started in 2019 involving X is annoying, but it's worth it for Y and Z. My DD2 gives me a percentage of how happy she in her choice - it's never 100% and we talk about the value of 75% happy. Having options has benefitted them, and I'm glad to have been able to have given that to them, now we've more options on what areas I'm teacher-mum and can facilitate things they don't have at school while I can leave other areas to the school.