I think it has to be acknowledged that Hamas is still bombarding Israel with rockets. There can’t be a ceasefire without agreement from both parties.
Israel could call a unilateral ceasefire but from a military perspective for what purpose? Those people stuck in north Gaza for whatever reason or people in hospitals are unlikely to be able to move. If I were Hamas I would use that to move people and weapons where I wanted them.
I don’t think I have heard Hamas request a ceasefire and any point. The conversation around hostage negotiations has been the release of prisoners in Israeli prisons. Not a ceasefire, not aid for civilians, not even protected zones for civilians.
Whilst the Hamas health authority is quite keen to report numbers of dead it has taken literally no steps to aid Palestinians at all. As pp pointed out, bomb shelters could have been built alongside tunnels, stockpiles of food an water etc, evacuation routes for civilians could have been planned as part of the preparations for the attack on Israel. from seeing what Hamas have managed to do I think they would have come up with a perfectly competent civilian contingency plan.
Unfortunately they are the authority in Gaza, they still have leverage, many of us are aghast at the state of Gaza, governments are reiterating to Israel that they must take care but Hamas has no interest in stopping this at all. I think they want to keep pushing until they can drag Hezbollah into the fight. Israel won’t stop until they are sure that Hamas cannot launch an attack like the one the Israelis have just experienced again. I genuinely think if Hamas asked for a ceasefire on humanitarian grounds that Israel would come under immense pressure to accede to that request.
There is literally no appetite from either Hamas or Israel for a cessation of hostilities.
I’m also a bit hmmm about the hospitals, whilst I accept that Hamas may very well be using them as bases I would imagine where Hamas leadership actually are is in the tunnels. Nice deep ones tucked away some where with minimal risk of a building collapsing ontop of them.