Mum doing adult son's washing- would this turn you off?

[Larkstongues]

Few disclaimers- this assumes son is mentally and physically capable of doing laundry.
I specifically mean mother here- I'm not talking about a man who has a very hard job employing a maid because he can afford it or a laundry surface. Outsourcing it to the professionals is OK.
I mean his MUM.
I 'm also not talking about borrowing her machine if his is too small for, by way of example, a duvet. Fair enough.

I've met a guy: he seems OK, he works but the standard 40 hours a week and lives alone.

He takes his washing round to his mum's once a week.

I don't know but the thought of a grown man having his mum wash his dirty underwear turns me off. Turns me off to the point I 'm thinking of calling it a day.
Now I KNOW it's my right to call it a day for whatever reason but I'm interested if this would be a dealbreaker for you lot, too or AIBU?

Yes, it would certainly be a major put-off, and probably a deal-breaker also.

Growing up my mum wouldn’t let any of us use the washing machine in case we broke it.

When I first left home at 17 I used to drop my washing off at my mums. She washed it twice. Next time I went to hers expecting to pick up clean washing, she hadn’t done it. I didn’t say anything about it and neither did she. I took it back and took it to the laundrette. I didn’t have a washing machine for another few years.

There could be a genuine reason for her doing it for him. But I can’t think what
When we have houseguests I used to offer to wash their stuff. My in laws and my mum were happy. I wasn’t so happy washing giant old people pants and y-fronts.
My son has been doing his own laundry since he was a teenager. It was a learning curve. Having to wear a damp school uniform and the occasional pink shirt but he’s quite proficient at it now. Better than his dad who used to take his laundry to his mums “because she liked doing it.”

It is unacceptable for a Mum to do her adult son's washing/laundry but perfectly acceptable for her to look after his children.

I don't know if that makes nannies or washer women higher or lower in the domestic pecking order.

I don’t see anything wrong with it as long as it’s something she wants to.

My MIL does both my OHs siblings and their partners and grandchild. She does ours when we visit and would want to do it all of the time if we lived nearby. She gets to have something to do, feel useful and have her family pop round on top of the family meals.

She is not misogynistic treating her daughter and sons the same, not overbearing and very respectful