I have never flown a light sport or ultralight. But an instructor I respect once told me that because these airplanes are so light, light winds toss them around easier than heavier airplanes. This can make them more difficult to control and land unless the wind is very light. So once you have learned to fly them, especially in some wind, transition to other aircraft is a piece of cake!
Get your sport pilot now. Don't wait.
Uh, not really, I fly a wide body jet for work and my champ which qualifies for LSA, for fun, the champ is easier to fly than a non LSA qualifying 170 or Maule in my opinion.
I don’t go up in lots of turbulence because it’s just not fun, but I’ll go play in the pattern with 20kt cross winds, it’s fun like dating a Latina, also a great mountain plane if you can read lift with its 34’ wing
As for the training, I have trained a few sport guys, I make it clear I am going to also provide them night and some instrument training, more or less PPL level training.
Murphys law doesn’t care about the FARs and I would rather they experience and learn bad weather and dark with me before one flight life decides to be the efficiently fast teacher she can be
Rolling a sport into a higher certificate is no big deal, and having blown big money on the FAA circus act in my career, having nothing scientifically, legally or medically wrong with me, I fully understand wanting to distance oneself from the FAA medical clown show as much as possible
As far as putting off flying or ownership, tomorrow is not promised, the only caveat would be to fly a few different types before you pull the trigger on your own ship, I love ownership, from getting my hands dirty on her oil changes and annuals, 24/7 access, and full operational control.