To think if you want a well presented man in his late 40s/50s....

This. It's not about resenting a hobby; it's about how women are expected to carry the physical and emotional load to facilitate that hobby at any and all costs. If society doesn't take issue with women 'staying fit', it's because we generally don't/can't leave someone else to carry an entire family whilst we enjoy a hobby

(And my DH isn't one of those 'hobby above everything' men, so I'm not bitter or otherwise invested. I just have eyes and see how this repeatedly unfolds)

I thought you were going to say if you want a well-presented man in his late 40s/50s you need to marry one when you are both in your 20s or 30s!

The issue is more the other way round, I see so many couples where the man seems to keep his life and hobbies the same after kids and the female half doesn't get a look in.

I did the opposite and married DH who is active, but pleasantly plump and likes his food and doesn't have a huge sports commitment so that I could carry on doing my running etc and know he was supportive of it as he's not that fussed himself. I couldn't be doing with someone superfit and obsessive and competing with me for the mirror or being a golf or cycling widow.

Hold on.
Women dont have issues with men having a hobby, or keeping fit, or socialising.
They have a problem when that activity takes up hours and hours and hours every week, leaving the childcare and housework to the woman, and this is not reciprocated.
They have a problem when there is limited time during the week to spend time as a family and then the man takes up hours at the weekend on his hobby only for himself.
They have a problem when these hobbies are seemingly immovable, causing issues when making family plans, when this was forseeable before having children and the man seemingly just decided that his wife would be locked into the childcare for this time without actually discussing it with her.
They have a problem when men are then tired after the activity and so even when they are home they arent pulling their weight.
A lot of the time, they arent pulling their weight in general at home, so for them to also be absent from parenting and housework and family life for hours at a time is another kick in the teeth.
They have a problem with men just assuming women will pick up the slack without discussing it with them and working as a team.

I think what you might be saying OP is that if you want a slim/fit husband you have to put uo with him doing exercise at the expense of him taking equal load of the housework/childcare.

If that is indeed what you are saying then, no I don’t agree.

My DH is fairly serious about cycling. When our DC were little he had to fit his training time around what worked for the family, just as I fit my own training around what worked for the family.

It was hisjob to manage his time, not mine to be a put upon martyred cycling wife

This is absolutely true. Is op a man or has she been fed this line by her husband! I’ll get fat if I don’t play golf for eight hours this weekend darling.

Why is it ‘accommodating’ for someone to do activities they enjoy and are good for them? I’ve always thought it is (not just physically) healthy to have interests outside the relationship and running/ cycling/ team sports is part of that.

TBH, I couldn’t bear to be in a relationship with someone who doesn’t keep busy, physically active and engaged with the world and would expect them support me to do the same. It’s a good example to set for DC too, especially teens.

Since you're linking 'well presented' to sport I assume you really mean 'physically trim'.

In which case 90% of the effort is about eating habits not being sporty.

The thing women on here suffer from is selfish fuckers who go out all day every weekend on their bike or golf. It does not have to be like that, you can stay fit with a lot less than that. It’s also I’d say usually part of a bigger picture, these men are usually selfish sorts who just don’t want to be at home, if it wasn’t sport it would be something else. So no I don’t agree with your premise.

So you want women to be more accommodating of men cycling and going to the gym to their and probably children detriment ?

no one has a problem with their partner having sporty hobbies. The problem comes when the hobby takes over and the man uses it as an excuse to neglect his family.

Well presented generally refers to clothes and hair more than fitness, I would say.

Does "well-presented" refer to clothes, physique, or both? I wasn't clear about this from your post.
Is it "women should be prepared for him to have sporty hobbies if you want him to look half-decent"?
Or perhaps it's an anti-lycra thread? 😀

Women have accommodated for men at our own expense for the last 100,000 years. We don't do that anymore.