When bureaucrats in a particular state see that a large segment of society is struggling with a particular rule or regulation, it may be time to address some changes to that rule. Texas and other states do this, but they are restricted somewhat in that federal regulations always supersede state regulations. Texas passes laws by presenting bills and having them move through the state legislature. If the bill gets enough votes, it is passed and becomes a law. However, it is very important that these bills are acceptable on the federal level, and that they comply with federal laws as well as what the state wants to accomplish. If they are not acceptable on a federal level, they cannot be laws in Texas, even if there were enough votes in that state to pass them. While some states have passed laws that go against what federal law states, it is highly possible that the federal government will go after those states in an attempt to stop them from enforcing laws that are not deemed to be in compliance.
In Texas, the laws are taken very seriously. As a more conservative state, Texas is also focused on ensuring that the laws on its books remain conservative-based and that those laws are upheld. Of course, when the federal government changes something to be more liberal there are conflicts between the government and the state. Basically, if the government legalizes something then the states have to do the same. This is also true in the reverse, but there are discrepancies. For example, the federal government says marijuana is illegal, but several states have legalized it. This is a serious issue. Additionally, several states have legalized same-sex marriage, which the government does not recognize. Where the rights of the states come in and where they have to be put aside because of the laws set by the federal government is sometimes a gray area, making things confusing for bureaucrats at both the state and federal levels.