Children and adults love model railway layouts.
There are toy model trains in the market that are suitable to kids but for the serious modelers or hobbyists, they can always turn to highly detailed models in the market.
The toy trains are available in different scales as well although the most popular is the O scale and the G scale (for garden layouts).
For the serious modelers, the smaller scales are ideal like the N scale.
Choosing the scale that you will use for the model railroad is the most important consideration next to the budget.
If you don't have enough money, you can purchase the locomotives and accessories one by one.
Once you've accumulated the needed materials, you can now start working on your layout.
The materials that you purchase should be based on the layout that you're planning to develop.
For instance, if you are going to focus on a certain era, you will have to get the locomotives and accessories that are fit into the said era.
Buy the accessories only from reputable hobby shops.
If you can't find one in your area, you can start surfing the web and find a store that can cater to your needs.
Start with a small layout and make sure that you look into possible expansion in the future.
For instance, you can choose a big and sturdy base and with a small layout, you will not be able to occupy all the space.
The remaining space can be used for expansion in the future.
Enjoy your new hobby!