Despite the benefits of just gambling alone, there is also the beauty of gambling with other people that is undeniable. In this context, do you still prefer gambling alone?
It depends of the type of game and the objective the bet.
I play for entertainment but I prefer to bet alone... I think that I do better when I have time to research, think things through and make a well-considered soccer bet. If I had someone on my side helping me with this, even if they had good intentions and a desire to help, I don't think I would be able to place the best bet possible.... or maybe I'm wrong and being too selfish?
Anyway... I confess that nowadays, with online casinos, betting has become much more solitary and is much more about financial gain than fun :/
I believe that if the intention is to participate in a card game or similar, I prefer to play on the presence of friends.