How common!

[Sproutpie]

As children we were told we couldn’t have Smash as it was common. The same was said of duffle coats, white plimsolls and a haircut without a fringe.
What were you not allowed ?

To eat anything in the street, such as a bag of crisps. No wearing pyjamas ANYWHERE in the house, other than from the bedroom to the bathroom.

ITV.

Oh no Fromage, it’s Channel four!

Eating in the street.
Ankle bracelets. Wearing them on one ankle in particular meant you were a prostitute. I can't remember which one!
Wearing rings on more than one finger on each hand.
Large, flashy jewellery.
Black tights and white shoes.
Peep toe shoes and tights.
Mini skirts with a split.
Chewing gum.
Talking about money.
Drinking bitter.
Swearing.
Being fat.
Ears pierced more than once.
Tattoos, especially on women.
Smoking in the street.
Having a regional accent.
Being loud in the street.
Taking your shoes off in someone else's house.

This is what my mum told me when I was growing up. She's an awful woman!

To describe the (at the time) very fashionable bum bags as bum bags. In our house they were hip bags.

ITV wasn't allowed for me either. Or patent shoes.

Having two earrings in each ear.
Children with ear piercings.

Being able to see bra straps!

ITV here, too.
Channel 4 hadn't been invented, neither had daytime telly, but both would have qualified.
(With the rather hypocritical exception of Coronation Street.)

Butlins
Any seaside resort/town
Being fat

I'm now fat and mother is not impressed, plus for my last holiday I went to Blackpool

RoseyOldCrow and Isittimeforbed and I are older than you, PositivelyPERF

Though I suspect Channel Four would have also been forbidden and Channel Five would have signalled the end of civilisation.

I’m 50. I remember when channel four first came out. Mind you I also remember getting water from a well and using candles for light or the Tilley lamp, when we could afford it. Grew up on a dirt poor farm.

We were not allowed to go guising (Scottish Halloween), we were told it was common and akin to begging.

Realised as we got older that my mum just didn't want to participate as she was tight/unsociable.

Clear bra straps!

ITV (specifically, Thundercats)
Soda stream
White bread
A perm
A pierced tummy button
The word 'belly'

We were common, so no restrictions.Although swearing was strictly prohibited.

Nothing. There was nothing my DP told us was common. And yet we were considered a bit posh. Weird.

Talking with the local accent (south east so just not pronouncing "t"s etc) - but not by my parents, by a snobby woman at church whose children all went to posh schools and who thought it was ok to police other children too

I know a few people who weren't allowed to watch ITV - they all grew up in the north (England), may be a coincidence rather than a regional thing though!

Dyed hair, particularly peroxide blonde. Saying serviette instead of napkin. False eyelashes. Eating in front of the tv or in the street. Tabloid newspapers. ITV. Flashy jewellery. Garden gnomes. Plastic flowers. Low cut tops. Tattoos. The list was endless - you could classify anyone as common by a quick glance at their house and clothes 50 years ago, and snobs usually did!

None of these. So useful being the daughter of immigrants.

Though swearing and chewing gum were forbidden to us. The first was 'mindless and unimaginative', the last made you 'look like a cow chewing the cud'.

(Swearing as in single word expletives. Creative curses were, in theory, acceptable, but you took your life in your hands if you were rude to DM or DD.)

ITV especially coronation street.
Black tights / trainers.
Trainers skirt
Caking the sitting room the lounge.
Sofa NOT setee.
Lunch not dinner at 1pm
Tea after school with friends who came for play date.
Dinner - parents meal at 7pm
Supper - something light before bed.
Granny not Nan, Nanna, Nanny.
Nanny the lady who looked after small children. Not a grand parent.

Caking ? Calling

Slip on shoes! Was never allowed them!

Milk bottles on the table. Not opening your curtains as soon as you are awake. Leaving washing on the line overnight. As pp said, ITV with the exception of Corrie (and couldn’t watch Magpie, but Blue Peter was fine). Bra straps showing. Putting the ‘big light’ on in the living room - it never ever was used (still isn’t!).

Chewing gum
Eating McDonalds
Eating in the street (am still unable to do this now, scurry into alleys like a criminal)
Saying fart (it was called a 'rude noise')
Saying belly

Specifically for girls:
Wearing trainers (other than for fitness/PE)
White legs (no tights)
Talking about politics
Drinking anything larger than a half pint.
Going out with wet hair