*What other reasons could contribute to this increase in gambling activities during the yuletide season?
And in addition to what you said above, I can also add that another factor that could contribute to the increase in the number of gamblers during Yuletide season is actually the availability or presence of Christmas Bonuses been offered by these respective casinos during the Christmas period. Because been a season of love and celebrations, casino owners knows that if they could make gambling looks attractive during those few period, they are likely to drive lots of gamblers who may want to try their luck gambling.
*I would also like to know if this period of increased gambling activities contribute majorly to addiction and what can be done to remedy such situation?
In some cases without a regulation, i might if the individual continues gambling irresponsibly. But for the reverse who might have gambled responsibly, will literally wouldn't felt bad.