I'm older than you but I don't think that matters much really other than I am getting too old for children to potentially be on the cards whereas you're not and that's something to consider. Other than that my life is similar from what you've said.
I am gravitating toward "I wouldn't OP".
I am on my own with a dog. It's hard. I adore her, but I never planned on being alone with her.
I am self-employed (not by choice just got made redundant) work two days a week freelance teaching. One from home one not. I have a couple of clients a week to supplement income, both from home. So not someone who's in the office every day.
It's still hard.
Some things that have happened over the past few months include;
This morning. I had gone to bed early wanting a full-days work (marking etc) today. Fireworks throughout the night meant my dog was terrified had to let her sleep in bed with me or she'd have scratched at my door all night and potentially had accidents. I did not get more than an hour of broken sleep. There isn't really much to be done if your dog is firework-anxious and unless you're very rural (maybe even then!) they're a fact of life. I have tried desensitising my dog to them and she was born in firework season but nothing has worked. So I got next to no sleep. This morning I got up at around 05:00 and went to let her out but she had what I call fear-diarrhea and she couldn't get outside on time. Not her fault but nobody wants that in their house-and no sleep left me too exhausted to get out of bed at a normal time. Would have been a lot worse if I'd have been employed and/or had to drive to work this morning, but it got me very behind with what I wanted to do-I had to sleep in or I'd have been useless all day. Dogs have accidents no matter what, sometimes too!
When I work outside of the home I have to have someone come and look after her. I can't afford a dog-walker but I am lucky to have helpful people in my life who'll do it. Don't know what I'd do otherwise (other than be skint).
I had a repair man come to the property who was scared of dogs, had to find someone to look after her. Another one a few months back was allergic-had to fumigate the house before he could attend-this can happen if you have visitors.
I am single (have a 'DP' but we live apart) and it can get quite lonely. E.G I'd love to join a club of some sort and/or go on more days out of a weekend when I don't see my DP but I can't because dog. My Mum suggested going somewhere but she won't have dog in her new, 'naice' car-fair enough, but means we don't go.
My ex (whom I got dog with) will have dog but they live a long way away-so if I want to go somewhere it means I have to incorporate a 3-hr round trip BEFORE going anywhere.
A few weeks ago I went shopping with my friend. We called into a pub to get some dinner afterward-had been out about 2 and a half hours. Friend wanted to stay and have a bit of a girly night with drinks-can't.
(Unless have someone to see to dog).
Went to nearby historic city with friends. Had someone to check in/walk/feed dog. Friends decided to make a night of it-suggested trying to find somewhere to stay over-Nope, dog to get back for.
This weekend I want to go and see my friends. This means finding someone to look after her as friends have dog mine doesn't get on with. I am lucky as there is a neighbour who'll have her. But many won't have this option and I don't like leaving her with neighbour really.
Of course I don't know if any of these scenarios will occur for you but one thing that struck me is your saying the dog may help with loneliness. They do! I won't deny that. Absoltuely they do.
But they can also make you more isolated (see scenarios above)? They can mean you can't do certain social things. Everything has to be dog friendly, fairly short lived, or you have to pay for or have access to care for the dog-do you want that? I guess what I am saying is they're great but can also make you more lonely in some ways.
My dog is also very much attached to me hence my not really liking leaving her with anyone (apart from ex).
I see myself as luckier than some in the care I have access to too. The neighbour who has her for example is a bit like a 'borrow my doggy' client but unofficial. Loves having her and wouldn't dream of taking payment, genuinely takes pleasure in it although I do provide favours in return.
And It's still difficult. As I've said I do get lonely and my Mother is a bit concerned about me and found a great club nearby that she recommended I join, but it means being out of the house all day for one day at least of the weekend-I can't do that!
You don't know what type of dog you'll get either-of course we can make predictions based on breed but they're unique in themselves. I socialised my dog from a young age but she still doesn't like being anywhere crowded. She was brought up with the two other dogs me and my ex had at the time, but isn't great with them as an older one.
All things to consider.