While a 35mm film camera is capable of fine images it's getting more expensive to use film as fewer people use it. If you develop your film at the drug store they now don't even return the negatives-screw that. You have to use an online service or a local specialist.
The digital images you get after a commercial scan are not near what 135 film is capable of. They scan at low resolution and compress the jpeg as well. The tonal range from dark to light is also greatly reduced by the mass market scans. Scanning on your own is far superior but you need better than the scanner on your all in one ink jet printer. When scanning film you also have to deal with dust.
To buy some film check out Adorama or B&H Photo. Two well regarded companies with brick and morter stores in NYC. They sell film in 36 exp rolls which can be more convenient than the 24s sold to mass market.
There are many web sites devoted to photography. One I recommend is:
https://kenrockwell.com/ Good luck and enjoy.
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