To think this is asking a lot?!

They need to sort their own travel out. OP doesn’t ‘need’ to compromise at all.

YANBU. My SD is really bad with money and if she goes to a friends house she conveniently doesn’t have a way to get home as she hasn’t got any money for the taxi back. She guilt trips her grandad into picking her up and taking her home which is on the other side of town to where they live. She tried it with me a couple of times but I flat out said no that I wasn’t her own private taxi. She tried saying that I do it for her dad (he can’t drive for medical reasons) to which my answer was he pays for half the finance, insurance, tax and petrol so if he needed picking up from bloody Scotland I’d drive up for him because he at least contributes. She has never once offered money for petrol before anyone asks.

so no YANBU

Absolutely no chance. Your brother is deluded.

Yeesh, I could not put it better😁

A doesn’t need to do anything for B and B doesn’t have the right to say whether A is tired after their shift no matter how many hours A works. I would tell B to get stuffed and change the entitled attitude. I would not do a single thing for someone who treats me like that.

@Foodfrezy

How are you doing? I know that if you've been conditioned by your parents/others to say 'how high' when B says 'jump' it can be a lot to take in when a huge chorus says "You don't have to do that".

Even though you know that you are right & that B is a CF, you may feel that we're telling you to swim against the current of a raging river. Especially if you still have people around you saying you need to 'help' B. It can be scary to change a lifetime's worth of habit. But it's also worthwhile.

Just know that you are right and they are wrong. And if you don't feel strong enough to swim against that tide, there is help out there for you to get strong enough. The golden child/black sheep dynamic isn't just about promoting B's desires, it's also about tearing yours down so you're compliant. So if this 'rings true' to you, consider getting counseling to help you pick things apart and put them back together in a way that proves to you that you are 'worthy' and have the right to determine your own life. And that B needs to take care of his own 'needs'.

Best of luck to you.

Not sure why you're continuing with the A & B shite, since you're A and your sister is B. So tell your sister absolutely not, it's not your responsibility. Do you work 5 days a week? At most if you're wanting to visit your parents with your sister, I'd (maybe) commit to once a fortnight. How frequently do you currently see your parents together, and why has your sister come up with this new increased visit schedule?

Sibling B needs to either move to a location with suitable public transport links for a non driver. Alternatively B could get a taxi or pay someone else who’s not putting in ten hours per day already. Even better to up their hours considerably, two per day is derisory unless it’s part of a short term plan of easing back into sustained employment.

I also have serious doubts about the severity of their mental health condition - the OP said “they SAY they can’t work more” indicating they believe B is exaggerating. I would think if B is competent to do three trips every week to make social visits and pressure someone into facilitating these visits they would be fit enough to boost their earnings - as a self employed person they are not being pressured by an employer and can be far more flexible in managing work on any bad MH days.

Person B sounds like he’s got used to his current level of free time and doesn’t want to go back to the daily grind.

B is a CF who needs to learn to drive and pay for an Uber until then. Get real.

Even if he is, still not A’s problem. He can go and live with family if that important.

Impossible to say without the wider context. I'm assuming the person to visit is an elderly/unwell parent. You obviously think your sibling is in some way exaggerating their mental health problems, but if they can't travel to see them any other way then you need to compromise. Maybe just go together on weekends. If your sibling is unreasonable, explain that your long shifts are impacting on your mental health too.

OP is your brother threatening suicide if you don’t do as he says? I just don’t understand otherwise why you haven’t told him to do one.

I'd stop engaging with B until they stopped making ridiculous requests.

Hard no, OP. Tell B to do one.

Ah missed the social rather than work
You need to tell him No chance,. Or " on your bike" literally!

How far away is the parent they want to see?
Does the parent need the help or company?
Why can't your brother cycle?
Why can't the parent visit your brother instead?
What is the parent's expectation?

I would be interested to know what mental health condition limits you (one) to working 2h a day.

I believe in this case it might be idlelayaboutitis.

B is a CF.
If they cant get on a bus or train like most people would, then they need to find a new job

Eh?

Tell your brother to get to fuck. He is a CF manchild and needs to take responsibility for his life. His problem is not yours to solve

I would do this once a week for my sister to support her and help improve her mental health.
I would not do this for my brother who is a spoilt brat, always expecting lifts to family events and mum still does his washing and ironing!!

B is VERY unreasonable. A is not a taxi and that volume of chauffeuring on top of long days of work would not be ok!

A needs to stop enabling B and tell them to learn to drive and get over themselves

Tell B to fuck off.

Why can't B move in with parents?