Why shouldn't they have light switches? Regarding sockets, everyone can do as they please, but I find it neither nice to have such 3-, 4- or even longer "blocks" everywhere nor to have a socket every 1-2 meters scattered around, and you can't get by without a multiple socket extension cord anyway or you rearrange things. It's hard to prepare for all eventualities. As mentioned, it's not a matter of price, a socket costs 3-4 €, but for me simply a question of aesthetics...
In my childhood bedroom, I had everything on one socket (waterbed, TV, DVD, PC, monitor, printer...), that worked too.
What I would recommend to everyone, if for cost reasons they don't install electric shutters or not everywhere, is at least to provide the cable for them or alternatively to place a socket at every window so that it can be easily retrofitted later.