It doesn’t matter if the seeds you are starting are going to be making their way outdoors once germinated or if they are going to be additions to your indoor garden & starting seeds inside is the best way to ensure success. The tiny seeds and seedlings do not do well with harsh weather changes and a late frost or excessive rain can prevent them from growing. There is also the problem of birds getting into the seeds as a food source.
There are many commercial helpers you can buy to make germinating seeds an easy project. Peat pellets that come with a miniature hot house require nothing more than adding water to the seed and peat and covering with the supplied lid. But some water, high-quality soil, sunlight and time are all that you need.