There are something like a third of children persistently absent from secondary school in some age groups. It's a lot more than parenting, and it's a lot more than lockdown, though that for some exacerbated matters or was a catalyst for issues to start.
But yeah, sure, continue to fine parents who would love their kids to just go to school and are at their wits end with anxious kids with unmet needs and their families breaking down as a result. Continue to have massive academy schools with a one size fits all approach to learning and discipline, continue to blame, fine and gaslight parents, continue to underfund state education, continue to deny access to CAMHS, continue to underfund mental health services, continue to underpay and undermine teachers and have them leaving the profession in droves. Continue to stick your head in the sand, vote Conservative, congratulate yourself warmly on the internet on you had a quite nice lockdown and how little Olivia has actually simply thrived since then, not like their little oik classmates. Continue to live in a smug little bubble and never know how it might be for others.