People nowadays bet more online than in physical objects - casinos, they are given the opportunity to bet in the comfort of their homes, without having to leave their homes and without the cost of transportation and accommodation.
or because it started with the increasingly difficult global COVID-19 situation, and more and more countries are advising or even banning their citizens from leaving their homes, and people are spending more and more time at home with their phones and internet now. And this is also the reason why the online gaming business is booming, because people have nowhere to go.
and whether the success of online gambling may affect casino or physical gambling.
Online gambling is a success because nowadays everything that's "online" has bigger success that everything offline.
We live in the digital age and the people are more dependent by their computers and smartphones than ever before.
The COVID lockdown era is over for most of the world( except China and maybe a few Asian countries). I don't know why do you think that the lockdowns are a thing anymore. Their influence over all online industries was temporary. The long term influence is caused by the digital age we live in. Most people would always choose the convenient option, rather than the not-so-convenient alternative. That's how the human brain works.
The offline gambling industry will survive for sure, but it will be concentrated in several major "gambling capitals" like Las Vegas, Atlanta, Macao, etc.
This makes sense. Now that we are in the 21st century, the technological advancement and innovation has becoming more and more developed which leads to modernization of things and processes. Now that the Internet has rapidly grown together with gadgets, no wonder online services and products became popular and widely used compared to the traditional and usual ones back then.
In addition, the pandemic forced us to adapt to various changes due to strict implementation of health protocols which is why most online products, services, and games were a success. The transition from traditional to modern is the external factor why online gambling was a success too. Having the right gadget and enough internet speed at the comfort of your home, you can now enjoy, relax, play, and perhaps earn money via gambling. You no longer have to go out of your comfort zone just to play gambling because it's already within your reach. It became accessible and convenient.