I don't even live in UK, so maybe it is not very wise from me to write about this, but I used to visit often before COVID and love your country a lot, so:
Love in UK
Don't need to worry too much about natural disasters - I'd give anything to live in a country where earthquakes can't happen
Kindest people I have ever met - I don't know how Brits are behind closed doors, but in public you're amazing. Last time I was in UK I was pregnant and people were giving me hand to help me enter the bus - that is something that will never happen in Croatia
BBC and ITV - I know Brits do not like them very much, but in Croatia BBC is the measure of quality television - and Only Fools and Horses is probably the only television show everybody has seen at least once in life
Your literature - all my favorite books are from British (and Irish) authors
Your parks - there is nothing in the world like park in the UK
London public transport - I fell in love with underground first time I was in UK and that love never left me
Pub culture - especially pubs with wonderful gardens on lovely spring and autumn day
Department stores - there is only one in my country and nothing like your beautiful department stores
Ready meals in shops - so many of them and so cheap - in my country ready meals are rare and damn expensive
Yellow stickers - first time I have seen a price on the yellow sticker item I was confused because I couldn't believe something can be so cheap
Lack of red tape - all my friends who moved to UK are amazed how easy it is to open the business
Hate in UK (this is probably too harsh to tell, but things I wouldn't like if I lived there - experience gained from reading mumsnet and watching british real estate show so take it with a pinch of salt)
Cost of childcare - I haven't known about this before reading mumsnet, but it is so high in UK. A single mum in croatian capital on minimal wage is going to pay around 5 per cent of her wage for childcare from 7.30 am till 5.30 pm, four meals included. There are places where childcare is free, somewhere is more expensive but even in most expensive cities you're never expected to pay more then 15 per cent of minimal wage. With each next child price is lower, and childcare is paid upon your salary and mortgage or the price of rental. The more you earn, more you pay. I have never met a woman who had to give up her job because of childcare.
Lack of ID card - I love my ID card and it makes my life so easy. Getting a passport in UK seems the work of the devil, I just have to show my ID.
Very narrow hallways in houses with no place to put wardrobes for coats and shoes - all right this is not personal experience but something I have picked from British real estate shows, but every time they show a house I wonder where you keep your shoes. Every Croatian hallway in houses and apartments is full of wardrobes for jackets and shoes
Chains while buying house - never heard about this before and always feel sorry for people stuck in them.
Please, don't be mad for me for writing things about country where I don't live.