In some examples of players, it is actually very easy for them to get a new club in Europe. But yes, back to the main issue, the salary given is less.
A large salary is the main factor in players being willing to leave a career in Europe, although this cannot be stated clearly with visible evidence.
It's true that it's a fact that's hard to deny, money is the biggest motivation for former European star players to move there. Calculating retirement funds and trying new challenges for the remainder of his professional career, I think there is no problem with that. Basically, the move is equally profitable from a business perspective, the large expenses for providing players salaries will be covered by the income that will be obtained by the club that recruits them. I think clubs in Europe also apply the same policy in recruiting players, but prioritize young players because the league there is already competitive.
Players who are 32 years old and over, moving to the SPL is a natural thing. They just want to enjoy the rest of their career with adequate income or even more. Or another reason is that they want to enjoy the remainder of their professional career by staying away from media coverage and wanting to focus on their family.
For me, the move of players under 30 years of age to the SFL is a phenomenon, although it has happened before but not like now.
Because of their career, it is impossible for them to move and leave a club that is strengthened in Europe because of that, but because of money. Another factor is that they may realize that their efforts to achieve success as professional footballers will never be realized as long as there are two players, namely Ronaldo and Messi, who are still active on the field.