Many users ignore it because they are lazy to read the terms and conditions which really take time to finish reading. But the problem is when they ignore these things later when they have difficulty making withdrawals, for example, always blaming the casino. They say the casino is not transparent in making policies. In fact, all of that will be in the terms and conditions if they read it first.
I say this for gambling platforms that really have high trust and not for gambling platforms that have intended to deceive users from the start.
Not all casinos will show their minimum wager especially the welcome bonus rules where they have a hidden rule about only certain game are counted the wager requirement, while the other games only contribute half or nothing.
The casino's terms is really long, no one will want to read the whole rules, most of people only care about KYC, blacklisted countries, multiple accounts, VPN and other things, they wouldn't aware about wager requirement, dormant account fee and other unpopular controversial rule.