NearTheWindmill I am so sorry to hear about your son. Regardless of who you are or what lifestyle you lead when something like this happens we are all stripped back to the basics. Just a parent grieving for the loss of a child. It is a devastating time, no parent should ever be in this position and I 100% sympathize.
Within the rest of my post I am not going to touch on the above it is with regards to what else you have said. I am the poster of the comment you quote above and I'm sorry but I standby what I said.
I feel I do see both sides of the coin. My ex husband was never around either so it's not that I haven't been in your position I wouldn't pass comment if I hadn't been on both sides and both are difficult at times. But when you still have partner you have someone that in an emergency you could contact. When having to make some of the more difficult choices you could run it past them.
I would like to draw your attention to this sentence in particular Yes, there aren't the money problems but often there isn't a great deal of practical support either This is what doesn't sit well with me. As a lone parent with ZERO financial support from DDs father I feel you are hugely dismissive of the financial burden of actually single-handedly keeping a roof over your head, bills paid, food in the fridge etc... This constant worry of have you got enough and if one month you are short having to figure out what can give a wee bit. You dismiss it like this is a minimal problem, the reality is that most lone parents have to deal with this constant struggle/battle on a daily basis. Even the one's that do receive some form of maintenance.
Along with this all of the above tasks that you mention dealing with, well we do it too. And a lot of never get a day off either.
So to actually say sometimes when you have a partner who is not there it's tougher, it is not tougher. It's tough but you still have someone there. He may not be around much but you still have someone. Lone parents do not, they have no one to rely on but themselves.
Personally if you think it's tougher to sometimes go without your partner then how on earth do you think lone parents do it day in day out without ever having a partner there.
The situations are different and drawing comparisons is probably pointless because at the end of the day we are all parents and go through hard times but the situations are not the same.