Recently in Philadelphia. Why is beer and wine/liquor sold at different shops? Anywhere else ive been, its sold in the same place.?

State laws. PA is many old "blue laws".

Up until a few years ago, beer could only be purchased at beer distributors (stores) and could only be sold by the case (well, you could buy 6-packs at bars) and beer stores could not be open on Sunday. The changes allowed purchases of smaller amounts and the possibility of grocery store sales (although it still has to be a separate part of the store)

Liquor and wine must still be purchased at state stores (these of course are run by the state).

The slight change in beer law took forever and with the revenue the state gets from the state stores (over $2.5 billion in revenue), I don't think that will change in the near future.

it depends wear you live like VA

States make their own laws and they can vary a lot. Pennsylvania has some of the most strict and complicated, and they include that wine and spirits must be sold in government-owned stores but beer can be sold elsewhere. The state issues licences to sell only beer, because only the state-run stores sell wine. All historical and nobody seems to want to change things.

Yes, other states do it differently and you might have "liquor stores" for everything alcoholic, or go further and just issue licences so anywhere approved can sell alcohol. But Pennsylvania has a history of wanting to restrict it more than that. It goes back to a previous governor at the time of Prohibition.

Just out of interest, I'm British and the whole country looks restrictive to me. We simply have "on-licences" that allow sale of alcohol and drinking it on the premises - obviously restaurants and pubs want one of those - and "off-licences" which only allow drinking it off the premises. Which is why liquor stores are often called off-licences or even "the offy", but you don't see many of them around because most people buy their alcohol in supermarkets. We never had the same history of wanting to ban it or Prohibition, we just want sensible regulation by age and if, for example, a pub regularly has drunken fights and there are complaints from neighbours, that would be a good reason for the local authority to remove its licence.

State regulations vary widely. In some areas, restaurants can serve beer, but not wine, or beer and wine but not liquor. It usually has to do with the alcohol content. And proximity to schools.