Trust vs newness of startup
Advantages of existing companies are trust. Disadvantages can be delayed.
Advantages of startups New and promotional. Disadvantages There is no trust.
Not all old casinos are trusted like what you have just sais, there are some old casinos which are still scam accused till date and still existing among the beat and transparent casinos. Most of the trusted ones still remains the best and worthy of play on their platforms but I will not advise any gambler to gamble on a non trusted gambling platform's.